KR20130075470A - Apparatus and method for judging placenta previa - Google Patents

Abstract

PURPOSE: A placenta previa determination apparatus and method are provided to rapidly accurately perform determination using three dimensional ultrasonic data. CONSTITUTION: An ultrasonic photographing unit obtains three dimensional ultrasonic data for a cervical portion and a placenta. A seed point selecting unit (120) selects two or more seed points. A data reconstruction unit (130) reconstructs the three dimensional ultrasonic data. A placenta previa determination unit (140) determines whether a placenta previa phenomenon exists or not. The determination is based on a result which compares a minimum distance with a predetermined reference distance. [Reference numerals] (110) Ultrasonic photographing unit; (120) Seed point selecting unit; (130) Data reconstruction unit; (140) Placenta previa determination unit; (150) Output unit; (AA) Target portion to be photographed; (BB) Ultrasonic photographing

Description

Placenta determination device and method {APPARATUS AND METHOD FOR JUDGING PLACENTA PREVIA}

The present invention relates to an apparatus and method for determining pre-placental placenta, and more particularly, to automatically determine whether the placenta prevails automatically by measuring the distance between the endometrium and the placenta of the cervix in an ultrasound examination of a pregnant woman. The present invention relates to an apparatus for and method of determining placental placenta.

Typically, the placental placenta (Placenta previa) refers to the case where the placenta is implanted in the lower part of the uterus so that a part of the placenta covers the internal os of the uterine cervix or descends very close.

That is, referring to FIG. 1, the placenta previa is distinguished according to the relationship between the placenta and the cervical endurance.

FIG. 1A illustrates a case in which the placenta completely covers the cervical endurance, which is called total placenta previa, and FIG. 1B illustrates a case in which the placenta partially covers the cervical endurance, which is called partial placenta previa. This is called.

In addition, Figure 1c is the case where the placenta is close to the edge of the cervical endurance and called it marginal placenta (Marginal placenta previa), Figure 1d is the case where the placenta is within the radius of the cervical endurance within 2cm of the lower pre-placental ( Low-lying placenta previa.

The incidence of placenta previa is about one-third, which is an important cause of obstetric bleeding.

Therefore, if the placenta is diagnosed, 'Physical activity' should be restricted during pregnancy, pelvic seizures are contraindicated and cesarean delivery should be performed.

Therefore, pre-placental placenta screening is a very important issue, and vaginal ultrasound is used for evaluation of placenta and cervical endurance.

When using such vaginal ultrasound, it is very easy to diagnose the complete placenta, but there is a problem that the partial placenta, marginal placenta, and lower placenta placenta may be different depending on the skill of the ultrasound operator.

That is, this problem occurs because the ultrasound operator subjectively determines the point of the placenta on the ultrasound image screen and measures the distance to the cervical endurance two-dimensionally based on this.

Therefore, a new method for measuring the placenta previa very precisely is required.

Therefore, the present invention was created to solve the above problems, and an object of the present invention is to optimally measure the distance between the cervical endurance and the placenta, using three-dimensional ultrasound data obtained by ultrasound examination for pregnant women. After reconstructing the data according to the camera coordinates, the reconstructed three-dimensional ultrasound data is used to automatically measure the minimum distance between the cervical endurance and the placenta. A determination apparatus and method are provided.

An apparatus for determining placenta previa according to a first aspect of the present invention for achieving the above object includes an ultrasound imaging unit for acquiring three-dimensional ultrasound data for the cervix and the placenta, and the durability of the cervix from the acquired three-dimensional ultrasound data. A seed point selector configured to select two or more seed points including a first seed point corresponding to the second seed point and a second seed point positioned adjacent to the end of the cervix and within a predetermined region, and an extension line connecting the selected two or more seed points A data reconstruction unit for reconstructing the 3D ultrasound data based on the identified point on the identified extension line, checking the boundary of the placenta from the reconstructed 3D ultrasound data and checking the boundary between the first seed point and the placenta. The minimum distance and the predetermined reference distance are calculated. Compared to the results of pre-judging the placenta, and is determined for determining whether or not on the basis of a result of placenta previa, characterized in that it comprises an output means to output the guidance to the user.

Preferably, the data reconstructing unit reconstructs the boundary of the placenta to the marginal part of the placenta, which forms a boundary with the endurance of the cervix.

Preferably, the data reconstructing unit may further include reconstructing a specific point on the identified extension line into a virtual viewpoint of ultrasound imaging for acquiring the reconstructed 3D ultrasound data.

Preferably, the data reconstruction unit reconstructs a specific point on the identified extension line to the uterine lateral wall point passing through the uterus in the duration of the cervix or to a point spaced apart from the uterine outer wall point by a predetermined proximity distance. It is done.

Preferably, the seed point selector may automatically select the two or more seed points through signal processing based on the obtained 3D ultrasound data.

Preferably, the seed point selector selects a point in which the second seed point is spaced apart from the first seed point at a predetermined seed point interval on the cervix in an area adjacent to the endurance of the cervix. .

Preferably, the data reconstruction unit is characterized in that for interconnecting the selected two or more seed points in a linear pattern (Linear Pattern).

Preferably, the data reconstruction unit includes a voxel location information extraction module for extracting voxel location information for the selected two or more seed points, an extension line checking module for identifying the extension line using the voxel location information; Reconstructing into a virtual viewpoint of ultrasound imaging for acquiring the reconstructed three-dimensional ultrasound data based on the identified point on the identified extension line, and acquiring the reconstructed three-dimensional ultrasound data through camera coordinates corresponding to the virtual viewpoint. It characterized in that it comprises a camera moving module.

Preferably, when the data reconstruction unit forms the reconstructed 3D ultrasound data as an image, the data reconstruction unit further includes a data filtering module configured to filter out 3D ultrasound data determined to be equal to or less than a predetermined resolution among the reconstructed 3D ultrasound data. It is characterized by including.

Preferably, the pre-placental placenta determiner is a three-dimensional ultrasound data input module for receiving the reconstructed three-dimensional ultrasound data from the data reconstructor, the placental boundary extraction to extract the placenta boundary from the reconstructed three-dimensional ultrasound data A module, extracting distance measurement data for distance measurement between the first seed point and the boundary of the placenta through signal processing based on the reconstructed three-dimensional ultrasound data, and then using the distance measurement data in the boundary of the placenta. And a minimum distance determining point calculating module for extracting the placenta boundary point closest to the first seed point, and a minimum distance calculating module calculating the minimum distance by calculating a distance between the first seed point and the placenta boundary point. Characterized in that.

Preferably, the pre-placental placenta determiner is a three-dimensional ultrasound data input module for receiving the reconstructed three-dimensional ultrasound data from the data reconstructor, the placental boundary extraction to extract the placenta boundary from the reconstructed three-dimensional ultrasound data The module extracts distance measurement data for distance measurement between the first seed point and the boundary of the placenta through signal processing based on the reconstructed 3D ultrasound data, and then uses the first seed point using the distance measurement data. And a pre-placental place determination distance calculation module for calculating a pre-placental place determination distance that can be formed between the boundary of the placenta and the minimum distance calculation module that calculates the smallest distance as the minimum distance as a result of the mutual comparison among the placenta determination distances. It features.

In addition, in accordance with a second aspect of the present invention for determining the placental placenta, the method for obtaining placenta in the placenta determination device, the three-dimensional ultrasound data for the cervix and placenta, from the obtained three-dimensional ultrasound data Selecting two or more seed points including a first seed point corresponding to the duration of the cervix and a second seed point adjacent to the duration of the cervix and within a predetermined area; Identifying an extension line, reconstructing the three-dimensional ultrasound data based on the identified point on the identified extension line, identifying a boundary of the placenta from the reconstructed three-dimensional ultrasound data, the first seed point and the Calculating a minimum distance between the boundaries of the placenta, the minimum distance and a preset reference distance Are compared to the step and the determination result of determining whether or not placenta previa on the basis of a result of characterized in that it comprises means for guiding the output to the user.

Preferably, the method of determining the placental placenta is characterized in that it further comprises the step of reconstructing the border of the placenta to the marginal portion of the placenta that borders the duration of the cervix.

Preferably, the method for determining the placental placenta further comprises reconstructing a specific point on the identified extension line into a virtual viewpoint of ultrasound imaging for acquiring the reconstructed 3D ultrasound data.

Preferably, the method for determining the placental placenta is to reconstruct a specific point on the identified extension line to the uterine outer wall point passing through the uterus in the duration of the cervix or to a point spaced apart from the uterine outer wall point by a predetermined distance. step; And further comprising:

Preferably, the selecting of the two or more seed points is characterized in that the two or more seed points are automatically selected through signal processing based on the obtained three-dimensional ultrasound data.

Preferably, the selecting of the two or more seed points selects the second seed point spaced apart from the first seed point on the cervix at predetermined seed point intervals in an area adjacent to the endurance of the cervix. Characterized in that.

Preferably, the calculating of the minimum distance may include extracting distance measurement data for measuring a distance between the boundary of the first seed point and the placenta through signal processing based on the reconstructed three-dimensional ultrasound data. The placenta boundary point closest to the first seed point is extracted from the boundary of the placenta by using the measurement data, and the minimum distance is calculated by calculating a distance between the first seed point and the placenta boundary point.

Preferably, the calculating of the minimum distance may include extracting distance measurement data for measuring a distance between the boundary of the first seed point and the placenta through signal processing based on the reconstructed three-dimensional ultrasound data. The pre-placental determination distance that can be formed between the boundary of the first seed point and the placenta is calculated using the measurement data, and the smallest distance is calculated as the minimum distance as a result of comparing with each other.

In addition, the computer-readable recording medium according to the third aspect of the present invention for achieving the above object is obtained by obtaining three-dimensional ultrasound data for the cervix and placenta in the pre-placental placenta determination device, from the three-dimensional ultrasound data obtained Selecting two or more seed points including a first seed point corresponding to the duration of the cervix and a second seed point located adjacent to the duration of the cervix and within a predetermined region; Identifying an extension line, reconstructing the three-dimensional ultrasound data based on the identified point on the identified extension line, identifying a boundary of the placenta from the reconstructed three-dimensional ultrasound data, the first seed point and the Calculating a minimum distance between the boundaries of the placenta, the minimum distance and a predetermined reference In that it comprises a command to execute the step of outputting step and the determination result are compared to determine whether or not placenta previa on the basis of a result of the re-in means for guiding the user characterized.

Therefore, the present invention uses three-dimensional ultrasound data reconstructed after reconstructing the three-dimensional ultrasound data obtained by ultrasound examination for pregnant women according to the camera coordinates that can optimally measure the distance between the cervical endurance and placenta By automatically measuring the minimum distance between the cervical duration and placenta, and automatically determining whether the placenta is placed through the determination of the measured minimum distance, the distance between the cervical duration and the placenta can be accurately measured regardless of the skill of the ultrasound operator. In addition, as the distance between the cervix and the placenta is accurately measured, there is an advantage that the placental placenta can be quickly and accurately performed and guided to the ultrasound performer.

1 is a diagram showing a case where the placenta is diagnosed through the relationship between the cervix and the placenta, respectively,
2 is a view showing an example of placental placenta determination device according to the present invention;
3 is a view showing a specific configuration of the placenta placenta determination apparatus shown in FIG. 2 as an embodiment; and
4 is a diagram illustrating an operation process of the apparatus for determining placenta previa shown in FIG. 2.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the placenta placenta determination device 100 according to the present invention in detail.

2 is a diagram illustrating an example of placental placenta determination apparatus 100 according to the present invention. As shown by way of example only in Fig. 2, the pre-placental placenta determination apparatus 100 automatically measures the distance between the endometrium and placenta of the cervix in an ultrasound scan of the pregnant woman and automatically determine whether the placenta prevail automatically through the measured distance It is made up of a configuration for determining.

That is, the anterior placenta determination apparatus 100 may include an ultrasound imaging unit 110 for acquiring 3D ultrasound data about the cervix and the placenta, a first seed point corresponding to the duration of the cervix from the acquired 3D ultrasound data, and Seed point selection unit 120 that selects two or more seed points, including the end of the cervix and the second seed point adjacent to the predetermined area, and check the extension line connecting the selected two or more seed points and the identified extension line The data reconstruction unit 130 reconstructs the 3D ultrasound data based on a specific point, checks the boundary of the placenta from the reconstructed 3D ultrasound data, calculates the minimum distance between the boundary of the first seed point and the placenta, and Pre-placental placenta determination unit 140 for determining whether the placenta previa is based on the result of comparing the preset reference distance with each other and the user It is preferable to have a configuration including an output unit 150 for outputting to the means for guiding.

The seed point selector 120 performs two or more through signal processing based on three-dimensional ultrasound data acquired through the ultrasound imaging unit 110 (eg, image analysis of an ultrasound image screen formed of three-dimensional ultrasound data). Select seed point automatically.

Here, selection of two or more seed points is a required process for specifying camera coordinates that can optimally measure the distance between the cervical endurance and the placenta.

It is also possible for the selection of two or more seed points to be manually selected by the ultrasound operator.

The data reconstructing unit 130 forms a kind of extension line by interconnecting two or more selected seed points in a linear pattern, and then moves the uterine outer wall point that has passed through the uterus from the cervical endurance to a specific point on the formed extension line. On the set or formed extension line, it is possible to set a point spaced apart from the uterine lateral wall point by a predetermined proximity distance to a specific point.

This particular point on the extension line has a meaning as a virtual view point, which is a camera coordinate that can optimally measure the distance between the cervical endurance and the placenta.

That is, the data reconstructor 130 virtually rotates the camera view viewpoint based on a specific point on the extension line, which is a virtual view point, and then obtains the 3D ultrasound data obtained from the ultrasound imaging unit 110 using the 3D ultrasound data observed from this viewpoint. Reconstruct the dimensional ultrasound data.

Subsequently, the placental placen determination unit 140 performs a placental boundary by performing signal processing on the reconstructed 3D ultrasound data provided from the data reconstruction unit 130 (eg, image analysis of an ultrasound image screen formed of the 3D ultrasound data). After determining the minimum distance between the first seed point and the placental boundary specified as pointing to the cervical endurance, it is determined whether the placenta is previa by comparing the measured minimum distance with a preset reference distance.

In addition, the boundary of the placenta mentioned above refers to the placenta area, that is, the placenta margin that borders on the cervical endurance.

FIG. 3 is a diagram illustrating a specific configuration of the apparatus for determining placenta previa shown in FIG. 2 as an example. As shown by way of example only in FIG. 3, a detailed configuration of the data reconstruction unit 130 and the preplacental placen determination unit 140 will be described.

First, the data reconstruction unit 130 includes a voxel location information extraction module 131 for extracting voxel location information for two or more selected seed points, and an extension line checking module for checking an extension line using voxel location information. 132) and reconstructing the virtual view point of the ultrasound imaging to obtain the reconstructed three-dimensional ultrasound data based on the identified point on the identified extension line, and obtaining the reconstructed three-dimensional ultrasound data through camera coordinates corresponding to the virtual view point. The camera moving module 133 is included.

Furthermore, the data reconstruction unit 130 reconstructs three-dimensional ultrasound data corresponding to a predetermined point of view, not an actual captured ultrasound image, and when the three-dimensional ultrasound data are formed as an image, the formed image itself is very remarkable in terms of resolution. There is a probability of falling.

Thus, when the data reconstruction unit 130 forms the reconstructed 3D ultrasound data as an image, the data filtering module 134 filters and removes the 3D ultrasound data determined to be equal to or less than a predetermined resolution among the reconstructed 3D ultrasound data. It is desirable to have a configuration that further includes.

Meanwhile, the pre-placental placer determination unit 140 extracts the boundary of the placenta from the three-dimensional ultrasound data input module 141 for receiving the reconstructed three-dimensional ultrasound data from the data reconstruction unit 130 and the reconstructed three-dimensional ultrasound data. Placenta boundary extraction module 142, distance measurement after extracting the distance measurement data for measuring the distance between the first seed point (ie, cervical endurance) and the placenta's boundary through signal processing based on the reconstructed three-dimensional ultrasound data Using the data, the minimum distance determination module 143 for extracting the placenta boundary point closest to the first seed point among the placenta boundaries and calculating the distance between the first seed point and the placenta boundary point may be used. The configuration including the minimum distance calculation module 144 to calculate is possible.

In addition, the placental placen determination unit 140 may calculate the minimum distance between the cervical endurance and the placenta in a manner other than the above-mentioned method.

That is, after the distance measurement data for the distance measurement between the boundary of the first seed point (ie, cervical endurance) and the placenta is extracted through signal processing based on the 3D ultrasound data reconstructed by the placental placen determination unit 140. The method of calculating the placental placenta determination distance that can be formed between the first seed point (ie, cervical endurance) and the placenta's boundary by using the measurement data and comparing the placenta determination distances with the minimum distance as the minimum distance have.

In this case, the placental placenta determination unit 140 replaces the minimum distance determination possible point calculation module 143 with the first seed point (ie, cervical endurance) through signal processing based on the reconstructed three-dimensional ultrasound data. Placental placenta determination to extract distance measurement data for distance-to-placement distance measurement and then calculate each placenta placenta determination distance that can be formed between the first seed point (ie, cervical endurance) and the placenta's boundary using the distance measurement data. The distance calculation module 144 may further include.

At this time, the minimum distance calculation module 144 of the placental placenta determination unit 140 calculates the smallest distance as the minimum distance as a result of comparing each other with respect to the preplacental plate determination distances in conjunction with the preplacental determination distance calculation module 144. We have an algorithm to do this.

4 is a diagram illustrating an example of an operation process of the apparatus for determining placenta previa shown in FIG. 2. As shown by way of example only in Fig. 4, the pre-placental placement determination method proceeds with acquiring three-dimensional ultrasound data through vaginal ultrasound imaging of a pregnant woman (S1 and S3).

Subsequently, the anterior placenta determination device (eg, an ultrasound device) automatically selects a first seed point corresponding to the cervical endurance and a second seed point adjacent to the cervical endurance within a predetermined region from the acquired 3D ultrasound data. (S5).

Here, the second seed point is preferably a point spaced apart from the first seed point at a predetermined seed point interval on the cervix of the region adjacent to the durability of the cervix.

After forming an extension line by connecting two or more seed points selected in step S5, a specific point (that is, a uterine uterine wall point that has passed through the uterus in the cervix of the cervix or a point separated from the uterine outer wall point by a predetermined proximity distance (ie, the uterus) 3D ultrasound data are reconstructed on the basis of the image screen formable point which makes it possible to easily determine the distance measurement between the cervical endurance and the placenta (S7 and S9).

Thereafter, the process of checking the boundary of the placenta, the placenta margin, based on the three-dimensional ultrasound data reconstructed in step S9 (S11), and calculating the minimum distance between the confirmed placenta boundary and the first seed point representing the cervical endurance, is performed. (S13).

If the placenta determination device determines that the minimum distance calculated in step S13 is less than the preset reference distance (for example, 2 cm), it is determined that it is pre-placental place, and the minimum distance calculated in step S13 is greater than or equal to the preset reference distance (for example, 2 cm). In the case, it is determined that the normal placenta is located, not the placenta previa (S17 and S19).

Thereafter, when the ultrasound examination for the placental placement determination is terminated, the performance of each of the above-mentioned steps is also terminated (S21).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

In addition, the present invention is to automatically determine the placenta previa placement automatically by measuring the distance between the endometrium and placenta of the cervix in the ultrasound examination for pregnant women, the possibility of market or sales may be sufficient In addition, it is an invention that is industrially applicable because it can be clearly implemented in reality.

100: placental placenta determination device 110: ultrasonic imaging unit
120: seed point selection unit 130: data reconstruction unit
131: voxel location information extraction module 132: extension line confirmation module
133: camera moving module 134: data filtering module
140: pre-placental determination unit 141: three-dimensional ultrasound data input module
142: placental boundary extraction module 143: minimum distance determination point calculation module
144: minimum distance calculation module 150: output unit

Claims (20)

Ultrasonic imaging unit for obtaining three-dimensional ultrasound data for the cervix and placenta;
Seed point selection for selecting two or more seed points from the acquired three-dimensional ultrasound data including a first seed point corresponding to the duration of the cervix and a second seed point adjacent to the duration of the cervix; part;
A data reconstructing unit which checks an extension line connecting the two or more selected seed points and reconstructs the three-dimensional ultrasound data based on a specific point on the identified extension line;
From the reconstructed 3D ultrasound data, the boundary of the placenta is identified, the minimum distance between the first seed point and the boundary of the placenta is calculated, and then transposed based on a result of comparing the minimum distance with the preset reference distance. Pre-placental place determination unit for determining the placenta; And
And an output unit outputting the determination result as a means for guiding the user. The method according to claim 1,
And the data reconstructing unit reconstructs the boundary of the placenta to the marginal part of the placenta forming the boundary of the cervix. The method according to claim 1,
And reconstructing, by the data reconstructing unit, a specific point on the identified extension line into a virtual viewpoint of ultrasound imaging for acquiring the reconstructed 3D ultrasound data. The method of claim 3,
The data reconstructing unit reconstructs a specific point on the identified extension line to the uterine lateral wall point passing through the uterus in the duration of the cervix or to a point spaced apart from the uterine lateral wall point by a predetermined proximity distance. Judgment device. The method according to claim 1,
And the seed point selector is configured to automatically select the two or more seed points through signal processing based on the acquired three-dimensional ultrasound data. 6. The method of claim 5,
The seed point selecting unit selects a place where the second seed point is spaced apart from the end of the cervix by the predetermined seed point on the cervix at a predetermined seed point interval. . The method according to claim 1,
And the data reconstruction unit interconnects the selected two or more seed points in a linear pattern. The method according to claim 1,
The data reconstruction unit includes: a voxel location information extraction module for extracting voxel location information for the selected two or more seed points;
An extension line checking module for checking the extension line using the voxel position information; And
Reconstructing into a virtual viewpoint of ultrasound imaging for acquiring the reconstructed three-dimensional ultrasound data based on the identified point on the identified extension line, and acquiring the reconstructed three-dimensional ultrasound data through camera coordinates corresponding to the virtual viewpoint. Placenta determination device comprising a; a camera moving module. The method of claim 8,
The data reconstructing unit may further include: a data filtering module configured to filter out 3D ultrasound data determined to be equal to or less than a predetermined resolution among the reconstructed 3D ultrasound data when the reconstructed 3D ultrasound data is formed as an image. An placenta placement determination device characterized by the above-mentioned. The method according to claim 1,
The prepositional placenta determination unit comprises: a 3D ultrasound data input module for receiving the reconstructed 3D ultrasound data from the data reconstruction unit;
Placental boundary extraction module for extracting the boundary of the placenta from the reconstructed three-dimensional ultrasound data;
Extracting distance measurement data for distance measurement between the first seed point and the boundary of the placenta through signal processing based on the reconstructed three-dimensional ultrasound data, and then using the distance measurement data, the first of the boundary of the placenta is used. A minimum distance judging point calculation module for extracting a placental boundary point closest to one seed point; And
And a minimum distance calculation module for calculating the minimum distance by calculating a distance between the first seed point and the placenta boundary point. The method according to claim 1,
The prepositional placenta determination unit comprises: a 3D ultrasound data input module for receiving the reconstructed 3D ultrasound data from the data reconstruction unit;
Placental boundary extraction module for extracting the boundary of the placenta from the reconstructed three-dimensional ultrasound data;
Extracting distance measurement data for distance measurement between the boundary of the first seed point and the placenta through signal processing based on the reconstructed three-dimensional ultrasound data, and then using the distance measurement data, the first seed point and the Pre-placental determination distance calculation module for calculating the pre-placental determination distance that can be formed between the boundary of the placenta; And
And a minimum distance calculation module that calculates the smallest distance as the minimum distance as a result of comparing the placenta determination distances with each other. Acquiring three-dimensional ultrasound data of the cervix and the placenta in an anterior placental determination apparatus;
Selecting two or more seed points from the obtained three-dimensional ultrasound data, including a first seed point corresponding to the duration of the cervix and a second seed point adjacent to the duration of the cervix;
Identifying an extension line connecting the selected two or more seed points;
Reconstructing the 3D ultrasound data based on the identified point on the identified extension line;
Identifying the boundary of the placenta from the reconstructed three-dimensional ultrasound data;
Calculating a minimum distance between the first seed point and the boundary of the placenta;
Determining whether the placental placenta is based on a result of comparing the minimum distance with a preset reference distance; And
And outputting the result of the determination as a means for guiding the user. The method of claim 12,
The placental placenta determination method further comprises the step of reconstructing the placenta's boundary to the marginal portion of the placenta, which borders the duration of the cervix. The method of claim 12,
The method for determining placental placenta further comprises: reconstructing a specific point on the identified extension line to a virtual viewpoint of ultrasound imaging for acquiring the reconstructed three-dimensional ultrasound data. 15. The method of claim 14,
The method for determining the placental placenta may include reconstructing a specific point on the identified extension line into an uterine outer wall point passing through the uterus in the duration of the cervix or a point spaced apart from the uterine outer wall point by a predetermined proximity distance. The placental placenta determination method further comprising. The method according to any one of claims 12 to 14,
The step of selecting two or more seed points is the pre-placental placement determination method, characterized in that for automatically selecting the two or more seed points through the signal processing based on the obtained three-dimensional ultrasound data. 17. The method of claim 16,
The selecting of the two or more seed points may include selecting a point in which the second seed point is spaced apart from the first seed point at predetermined seed point intervals on the cervix of an area adjacent to the endurance of the cervix. Placenta judgment method to do. The method according to any one of claims 12 to 14,
The calculating of the minimum distance may include extracting distance measurement data for distance measurement between the boundary of the first seed point and the placenta through signal processing based on the reconstructed 3D ultrasound data, and then using the distance measurement data. And extracting the placental boundary point closest to the first seed point among the boundary of the placenta and calculating the minimum distance by calculating a distance between the first seed point and the placenta boundary point. The method according to any one of claims 12 to 14,
The calculating of the minimum distance may include extracting distance measurement data for distance measurement between the boundary of the first seed point and the placenta through signal processing based on the reconstructed 3D ultrasound data, and then using the distance measurement data. And calculating the placental placenta determination distance that can be formed between the boundary of the first seed point and the placenta and comparing the mutual placenta determination distance among the placenta determination distances to calculate the smallest distance as the minimum distance. Acquiring three-dimensional ultrasound data of the cervix and the placenta in an anterior placental determination apparatus;
Selecting two or more seed points from the obtained three-dimensional ultrasound data, including a first seed point corresponding to the duration of the cervix and a second seed point adjacent to the duration of the cervix;
Identifying an extension line connecting the selected two or more seed points;
Reconstructing the 3D ultrasound data based on the identified point on the identified extension line;
Identifying the boundary of the placenta from the reconstructed three-dimensional ultrasound data;
Calculating a minimum distance between the first seed point and the boundary of the placenta;
Determining whether the placental placenta is based on a result of comparing the minimum distance with a preset reference distance; And
Outputting the result of the determination as a means for guiding the user; a computer-readable recording medium comprising instructions for executing.

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