CN117017471A - System and method for detecting heart three-dimensional mapping pulse signals - Google Patents
System and method for detecting heart three-dimensional mapping pulse signals Download PDFInfo
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Abstract
The invention provides a heart three-dimensional mapping pulse signal detection system and method, and belongs to the technical field of electrocardiograph monitoring. The system comprises a three-dimensional reconstruction unit, a target position determining unit, a dual judging unit, a pulse signal acquiring unit, a synchronizing unit and a heart three-dimensional map constructing unit; the method comprises the following steps of S100: determining a plurality of heart three-dimensional target mapping positions to be detected; s200: judging whether the dual target mark position exists in the first target mark position; marking the dual target mapping position as a second target mapping position; s300: sequentially acquiring a first heart three-dimensional mapping pulse signal of a first target mapping position and a second heart three-dimensional mapping pulse signal of a second target mapping position; s400: a first cardiac three-dimensional map is constructed. The technical scheme of the invention utilizes the three-dimensional coordinate duality and the heart structure duality to reduce the complexity of the three-dimensional mapping of the heart.
Description
Technical Field
The invention belongs to the technical field of electrocardiograph monitoring, and particularly relates to a heart three-dimensional mapping pulse signal detection system and method.
Background
Atrial fibrillation (atrial fibrillation) is one of the most common diseases affecting cardiovascular health in China, about 800 thousands of patients with atrial fibrillation, and the incidence rate of atrial fibrillation is also increasing with age. Patients are often at risk of chest distress, palpitations, heart failure, and stroke, not only are the quality of life greatly affected, but even life threatening.
Compared with the traditional medicine treatment effect, the transcatheter radio frequency ablation radical treatment is a novel treatment method developed in recent years. The catheter with the electrode is sent into a specific part of a heart chamber through a vein or an arterial vessel, and the electrode at the head end of the catheter generates a certain temperature to cause the necrosis of a local endocardium and a heart muscle under the endocardium by releasing radio frequency current, so that the abnormal electric activity is blocked, the normal rhythm of the heart is recovered, and the regular systole of the heart is ensured. The treatment mode has obvious effect and can obviously reduce complications and the death rate. Currently, radio frequency ablation under the guidance of three-dimensional mapping systems is considered as the current advanced atrial fibrillation treatment method. Because the three-dimensional mapping system can help doctors to observe the three-dimensional structure of the heart more stereoscopically and vividly, the disease can be accurately diagnosed in a shorter time, the ablation target point can be accurately positioned, and the success rate, the effectiveness and the safety of the operation are improved.
Currently, three-dimensional electrophysiology mapping of the heart often requires the use of multiple multi-electrode mapping catheters that are minimally invasive access into the heart chamber through the femoral vein, with electrodes in direct contact with the endocardium, thereby measuring the electrical potential signal in one cardiac cycle at the point of contact (the electrical potential signal is conducted from the endocardium into the blood stream located within the heart chamber). After one cardiac cycle is measured, the catheter is moved to another endocardial position for contact measurement and the three-dimensional spatial coordinates of the contact point are recorded until the clinical region of interest is measured.
On the basis, all potential signals at different positions to be measured and the activation sequence thereof are required to be time-synchronized by combining a plurality of electrocardiograph and respiratory gating data obtained by a monitor, so that the potential signal amplitude and the activation sequence diagram of the three-dimensional map in the heart activation process can be established. The process aims at the three-dimensional space coordinates of the contact point to be recorded and synchronously acquire a plurality of electrocardio and respiratory gating data for the contact measurement of each target mapping point, and the synchronous process needs to be carried out for a plurality of times, so that the whole process is complex, and the data processing flow is long.
Disclosure of Invention
In order to solve the technical problems, the invention provides a system and a method for detecting a heart three-dimensional mapping pulse signal.
In a first aspect of the present invention, a method for detecting a three-dimensional mapping pulse signal of a heart is provided, the method comprising the steps of:
s100: determining a plurality of heart three-dimensional target mapping positions to be detected; the plurality of cardiac three-dimensional target mapping locations includes a first target mapping location;
s200: judging whether a dual target mark position exists in the first target mark position or not, wherein the dual target mark position and the first target mark position are symmetrically distributed relative to one coordinate axis of three-dimensional coordinate axes;
if the first target mark position has a dual target mark position, marking the dual target mark position as a second target mark position;
s300: sequentially acquiring a first heart three-dimensional mapping pulse signal of a first target mapping position and a second heart three-dimensional mapping pulse signal of a second target mapping position;
s400: based on the first heart three-dimensional mapping pulse signal and the second heart three-dimensional mapping pulse signal, a first heart three-dimensional mapping diagram is constructed by combining the synchronously acquired first electrocardiograph and respiration gate control data.
Specifically, in the step S200, if the dual target mapping position does not exist in the first target mapping position, the electrocardiograph monitor is turned on while pulse detection is performed on the first target mapping position;
the electrocardiograph monitor obtains second electrocardiograph and respiratory gating data while pulse detection is carried out on the first target mark position to obtain a third heart three-dimensional mark pulse signal;
the next heart three-dimensional target marking position is acquired as the first target marking position and the step S200 is continued.
And after all the three-dimensional target mapping positions of the heart are detected, performing time synchronization on all the three-dimensional mapping pulse signals of the third heart according to the detection sequence based on the corresponding second electrocardiograph and respiration gating data.
The first cardiac three-dimensional mapping pulse signal and the third cardiac three-dimensional mapping pulse signal include potential signal pulses and pulse widths.
Specifically, the step S200 further includes:
determining a target mapping plane, the target mapping plane having a first dimension axis and a second dimension axis;
the first dimension axis and the second dimension axis are any two dimension axes in a three-dimensional coordinate axis;
the dual target mapping locations and the first target mapping locations are symmetrically distributed with respect to the first dimension axis or the second dimension axis.
Specifically, in step S100, a plurality of cardiac three-dimensional target mapping positions to be detected are determined through a three-dimensional reconstruction model of the heart.
In a second aspect of the present invention, there is provided a heart three-dimensional map pulse signal detection system, the system including a three-dimensional reconstruction unit, a target map position determination unit, a dual judgment unit, a pulse signal acquisition unit, a synchronization unit, and a heart three-dimensional map construction unit;
the three-dimensional reconstruction unit is used for reconstructing a three-dimensional model of the heart to be detected, and the three-dimensional model comprises a plurality of three-dimensional coordinates;
the target mapping position determining unit is used for determining a plurality of heart three-dimensional target mapping positions to be detected based on a plurality of three-dimensional coordinates of the three-dimensional model;
the dual judging unit is used for judging whether dual target marking positions exist in the three-dimensional target marking positions of each heart;
the pulse signal acquisition unit is used for acquiring a heart three-dimensional mapping pulse signal of each heart three-dimensional target mapping position;
the synchronization unit is used for performing time synchronization on the heart three-dimensional mapping pulse signals at a plurality of different positions;
the heart three-dimensional map construction unit constructs a heart three-dimensional map based on the heart three-dimensional map pulse signals and the electrocardio and respiratory gating data of each heart three-dimensional target mapping position;
wherein, judge whether each heart three-dimensional target mark position has dual target mark position, specifically:
and judging whether each heart three-dimensional target mapping position has another heart three-dimensional target mapping position symmetrically distributed relative to one coordinate axis of the three-dimensional coordinate axes.
The system also includes an electrocardiograph monitor for acquiring the electrocardiograph and respiratory gating data.
The system further comprises a mapping plane determining unit for determining a target mapping plane, the target mapping plane having a first dimension axis and a second dimension axis; the first dimension axis and the second dimension axis are any two dimension axes in a three-dimensional coordinate axis;
judging whether dual target marking positions exist in each heart three-dimensional target marking position or not, specifically:
it is determined whether there is another cardiac three-dimensional target mapping position symmetrically distributed with respect to the first dimension axis or the second dimension axis for each cardiac three-dimensional target mapping position.
The pulse signal acquisition unit comprises a plurality of multi-electrode mapping catheters, wherein the plurality of multi-electrode mapping catheters comprise a first multi-electrode mapping catheter and a second multi-electrode mapping catheter;
the number of electrodes of the first multi-electrode mapping catheter is less than the number of electrodes of the second multi-electrode mapping catheter;
and detecting the second heart three-dimensional target mapping position through the first multi-electrode mapping catheter when the dual target mapping position does not exist in the first heart three-dimensional target mapping position.
According to the technical scheme, mapping classification is carried out on a plurality of heart three-dimensional target mapping positions according to whether dual target mapping positions exist or not, if the dual target mapping positions exist in the first target mapping positions, the dual target mapping positions are marked as second target mapping positions, at the moment, a first heart three-dimensional mapping pulse signal of the first target mapping positions and a second heart three-dimensional mapping pulse signal of the second target mapping positions are sequentially acquired, a first heart three-dimensional mapping image is constructed based on the first heart three-dimensional mapping pulse signal and the second heart three-dimensional mapping pulse signal and combined with the synchronously acquired first heart electric and respiratory gating data, at the moment, three-dimensional space coordinates of contact points do not need to be recorded for each target mapping point, and (secondary) synchronization of a plurality of heart electric and respiratory gating data does not need to be executed; only when the first target mapping position does not have a dual target mapping position, the method is performed according to the existing flow of the prior art.
Due to reasonable selection of the target plane and symmetry of partial substructures of the three-dimensional structure of the heart, the technical scheme of the invention can omit 30% -50% of data recording process and synchronous flow, and the complexity of three-dimensional mapping of the heart is reduced by utilizing the duality of the three-dimensional coordinates and the duality of the heart structure.
Further advantages of the invention will be further elaborated in the description section of the embodiments in connection with the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a main flow chart of a method for detecting a pulse signal for three-dimensional mapping of a heart according to an embodiment of the invention
FIG. 2 is a schematic diagram of a process flow for detecting a dual target position in a method for detecting a pulse signal for three-dimensional mapping of a heart
FIG. 3 is a schematic diagram of a process flow of detecting a dual target position in a method for detecting a pulse signal for three-dimensional mapping of a heart
FIG. 4 is a schematic diagram showing the functional unit components of a system for detecting pulse signals for three-dimensional mapping of heart in accordance with one embodiment of the present invention
Detailed Description
The invention will be further described with reference to the drawings and detailed description.
Referring to fig. 1, the method for detecting the pulse signal for three-dimensional mapping of the heart includes steps S100-S400, and the specific implementation of each step is as follows:
s100: determining a plurality of heart three-dimensional target mapping positions to be detected; the plurality of cardiac three-dimensional target mapping locations includes a first target mapping location;
s200: judging whether a dual target mark position exists in the first target mark position or not, wherein the dual target mark position and the first target mark position are symmetrically distributed relative to one coordinate axis of three-dimensional coordinate axes;
if the first target mark position has a dual target mark position, marking the dual target mark position as a second target mark position;
s300: sequentially acquiring a first heart three-dimensional mapping pulse signal of a first target mapping position and a second heart three-dimensional mapping pulse signal of a second target mapping position;
s400: based on the first heart three-dimensional mapping pulse signal and the second heart three-dimensional mapping pulse signal, a first heart three-dimensional mapping diagram is constructed by combining the synchronously acquired first electrocardiograph and respiration gate control data.
Specifically, in step S100, a plurality of cardiac three-dimensional target mapping positions to be detected are determined through a three-dimensional reconstruction model of the heart.
In a specific implementation, the three-dimensional reconstruction model of the heart includes M three-dimensional coordinate point sets in a three-dimensional coordinate axis (system), from which N three-dimensional target mapping positions of the heart may be determined.
Preferably, the M three-dimensional coordinate point sets may be divided into a plurality of sub-regions, and for each sub-region, at least one target map point is determined as a heart three-dimensional target map position.
For example, the coordinates of the K three-dimensional coordinate points included in each sub-region may be weighted and averaged to obtain a target mapping point;
thus, for multiple sub-regions, multiple target mapping locations may be obtained.
On this basis, the step S200 further includes: determining a target mapping plane, the target mapping plane having a first dimension axis and a second dimension axis; the first dimension axis and the second dimension axis are any two dimension axes in the three-dimensional coordinate axis.
As a specific example, the three-dimensional coordinate axis (system) of the three-dimensional reconstruction model of the heart is X-Y-Z, and the target mapping plane can be an X-Y plane, a Y-Z plane or a Z-X plane.
Taking a target mapping plane as an X-Y plane as an example, the mapping plane is provided with a first dimension axis X and a second dimension axis Y;
judging whether a dual target mark position exists in the first target mark position or not, wherein the dual target mark position and the first target mark position are symmetrically distributed relative to one coordinate axis of three-dimensional coordinate axes;
specifically, the dual target mapping locations and the first target mapping locations are symmetrically distributed with respect to the first dimension axis or the second dimension axis.
The above example is continued.
Assuming that the current first target mapping position coordinates are represented as { X1, Y1, Z1}, if there is another target mapping position coordinate is { -X1, Y1, Z2} or { X1, -Y1, Z3}, wherein Z1, Z2, Z3 are different;
the first target mapping location has a dual target mapping location.
Based on the determination criteria, all first target mapping locations of the plurality of cardiac three-dimensional target mapping locations having dual target mapping locations may be determined.
On this basis, a flow of acquiring cardiac three-dimensional mapping pulse signals and constructing a first cardiac three-dimensional mapping map is performed for all first target mapping positions having dual target mapping positions among a plurality of cardiac three-dimensional target mapping positions, see fig. 2.
The flow of fig. 2 can be summarized as the following steps S21-S28 (step numbers are not shown in fig. 2 for simplicity of description):
s21: determining a plurality of heart three-dimensional target mapping positions to be detected; the plurality of cardiac three-dimensional target mapping locations includes a first target mapping location;
s22: judging whether the dual target mark position exists in the first target mark position;
if yes, go to step S23;
s23: marking the dual target mapping location as a second target mapping location;
s24: sequentially acquiring a first heart three-dimensional mapping pulse signal of a first target mapping position and a second heart three-dimensional mapping pulse signal of a second target mapping position;
s25: synchronously acquiring first electrocardiograph and respiratory gating data corresponding to a first target mapping position and a second target mapping position;
s26: judging whether all the three-dimensional target marking positions of the heart are detected completely, if so, entering a step S28, otherwise, entering a step S27;
s27: acquiring the next undetected heart three-dimensional target mark position as a first target mark position, and returning to the step S22;
s28: based on the first heart three-dimensional mapping pulse signal and the second heart three-dimensional mapping pulse signal, a first heart three-dimensional mapping diagram is constructed by combining the synchronously acquired first electrocardiograph and respiration gate control data.
It can be seen that in the above embodiment, since the first target mapping position and the second target mapping position determined each time are dual positions, there is no need to record the coordinate values of the first target mapping position and the second target mapping position at the same time, nor to perform secondary synchronization for the first target mapping position and the second target mapping position subsequently, but only one time of synchronization is required, that is, only the coordinate values of the first target mapping position and the electrocardiographic and respiratory gating data for the first target mapping position need to be recorded, and the second target mapping position and the synchronization order are obtained by the dual positions and the dual measurement order, whereby, in an ideal case, the time complexity can be reduced by 50% at most. Of course, in practical application, there is at least more than 30% room for improvement due to the natural symmetry of the heart part sub-structure.
Fig. 3 is a schematic diagram of a process flow of detecting a position of a dual target in the method for detecting a pulse signal of three-dimensional mapping of a heart.
The flow of fig. 3 can be summarized as the following steps S31-S39 (step numbers are not shown in fig. 3 for simplicity of description):
s31: determining a plurality of heart three-dimensional target mapping positions to be detected; the plurality of cardiac three-dimensional target mapping locations includes a first target mapping location;
s32: judging whether the dual target mark position exists in the first target mark position;
if not, go to step S33;
s33: starting an electrocardiograph monitor while pulse detection is carried out on the first target standard position;
s34: the electrocardiograph monitor obtains second electrocardiograph and respiratory gating data while pulse detection is carried out on the first target mark position to obtain a third heart three-dimensional mark pulse signal;
s35: judging whether all the three-dimensional target marking positions of the heart are detected completely, if so, entering a step S37, otherwise, entering a step S36;
s36: acquiring the next undetected heart three-dimensional target mark position as a first target mark position, and returning to the step S22;
s37: time synchronization is carried out on all third heart three-dimensional mapping pulse signals according to the detection sequence based on the corresponding second electrocardio and respiration gating data;
s38: and constructing a second heart three-dimensional map based on the synchronized data.
In the embodiment of fig. 3, it is in fact possible to proceed according to the prior art, i.e. with reference to a flow already existing in the prior art, when no dual target mapping locations are present for said first target mapping location. At this time, the contact measurement performed on each target mapping point needs to record the three-dimensional space coordinates of the contact point and synchronously acquire a plurality of electrocardiograph and respiratory gating data, and multiple synchronization processes need to be performed.
However, it should be noted that the "target positions" to be referred to at this time are not all "target positions", but only those partial target positions where there is no dual target position, and thus the amount of processing data is greatly reduced even when the prior art is employed at this time.
Of course, in practical applications, the plurality of cardiac three-dimensional target mapping positions may be divided into a first type of target mapping position set having dual target mapping positions and a second type of target mapping position set having no dual target mapping positions.
At this time, for each target mapping position in the first type of target mapping position set having dual target mapping positions, referring to the method of fig. 2, a first cardiac three-dimensional mapping map may be established; for each target mapping location of the second class of target mapping location sets having no dual target mapping locations, a second cardiac three-dimensional map may be established with reference to the method of fig. 3.
And then, fusing the first heart three-dimensional map and the second heart three-dimensional map to obtain the whole three-dimensional map of the heart to be detected.
In the above-described embodiments, the first cardiac three-dimensional mapping pulse signal and the third cardiac three-dimensional mapping pulse signal include potential signal pulses and pulse widths.
On the basis, in order to implement the steps of the method described in fig. 1-3, referring to fig. 4, the present embodiment proposes a system for detecting a pulse signal for three-dimensional mapping of a heart, where the system includes a three-dimensional reconstruction unit, a target mapping position determining unit, a dual judging unit, a pulse signal acquiring unit, a synchronizing unit, and a heart three-dimensional mapping constructing unit.
The three-dimensional reconstruction unit is used for reconstructing a three-dimensional model of the heart to be detected, and the three-dimensional model comprises a plurality of three-dimensional coordinates;
the target mapping position determining unit is used for determining a plurality of heart three-dimensional target mapping positions to be detected based on a plurality of three-dimensional coordinates of the three-dimensional model;
the dual judging unit is used for judging whether dual target marking positions exist in the three-dimensional target marking positions of each heart;
the pulse signal acquisition unit is used for acquiring a heart three-dimensional mapping pulse signal of each heart three-dimensional target mapping position;
the synchronization unit is used for performing time synchronization on the heart three-dimensional mapping pulse signals at a plurality of different positions;
the heart three-dimensional map construction unit constructs a heart three-dimensional map based on the heart three-dimensional map pulse signals and the electrocardio and respiratory gating data of each heart three-dimensional target mapping position;
wherein, judge whether each heart three-dimensional target mark position has dual target mark position, specifically:
and judging whether each heart three-dimensional target mapping position has another heart three-dimensional target mapping position symmetrically distributed relative to one coordinate axis of the three-dimensional coordinate axes.
In a specific application, the system further comprises an electrocardiograph monitor for acquiring the electrocardiograph and respiratory gating data.
The system further comprises a mapping plane determining unit for determining a target mapping plane, the target mapping plane having a first dimension axis and a second dimension axis; the first dimension axis and the second dimension axis are any two dimension axes in a three-dimensional coordinate axis;
judging whether dual target marking positions exist in each heart three-dimensional target marking position or not, specifically:
it is determined whether there is another cardiac three-dimensional target mapping position symmetrically distributed with respect to the first dimension axis or the second dimension axis for each cardiac three-dimensional target mapping position.
The pulse signal acquisition unit comprises a plurality of multi-electrode mapping catheters, wherein the plurality of multi-electrode mapping catheters comprise a first multi-electrode mapping catheter and a second multi-electrode mapping catheter;
the number of electrodes of the first multi-electrode mapping catheter is less than the number of electrodes of the second multi-electrode mapping catheter;
and detecting a second heart three-dimensional target mapping position through the first multi-electrode mapping catheter when the dual target mapping position does not exist in the first heart three-dimensional target mapping position. The second cardiac three-dimensional target mapping location and the first cardiac three-dimensional target mapping location are different locations.
And detecting the dual target mapping position through the second multi-electrode mapping catheter when the dual target mapping position exists at the first cardiac three-dimensional target mapping position.
Obviously, due to the existence of dual positions, more multi-electrode mapping catheters are adopted, so that the comprehensiveness of data acquisition can be ensured.
The method comprises the steps of performing mapping classification on a plurality of heart three-dimensional target mapping positions according to whether dual target mapping positions exist or not, marking the dual target mapping positions as second target mapping positions if the dual target mapping positions exist in the first target mapping positions, sequentially acquiring a first heart three-dimensional mapping pulse signal of the first target mapping positions and a second heart three-dimensional mapping pulse signal of the second target mapping positions at the moment, constructing a first heart three-dimensional mapping graph based on the first heart three-dimensional mapping pulse signal and the second heart three-dimensional mapping pulse signal and combining synchronously acquired first electrocardio and respiratory gating data, and at the moment, not recording three-dimensional space coordinates of contact points for each target mapping point, and not executing (secondary) synchronization of a plurality of electrocardio and respiratory gating data;
only when the dual target mapping position does not exist in the first target mapping position, the method refers to the existing flow in the prior art, and only partial target mapping positions but not all target mapping positions are needed at the moment, so that the processing time and flow are saved, and the complexity is further reduced.
Due to reasonable selection of the target plane and natural symmetry of partial substructures of the three-dimensional structure of the heart, the technical scheme of the invention can omit 30% -50% of data recording process and synchronous flow, and the complexity of three-dimensional mapping of the heart is reduced by utilizing the duality of the three-dimensional coordinates and the duality of the heart structure.
In the various embodiments of the present invention, the embodiments of the present invention have been shown and described, but it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims (10)
1. A method for detecting a three-dimensional mapping pulse signal of a heart, which is characterized by comprising the following steps:
s100: determining a plurality of heart three-dimensional target mapping positions to be detected; the plurality of cardiac three-dimensional target mapping locations includes a first target mapping location;
s200: judging whether a dual target mark position exists in the first target mark position or not, wherein the dual target mark position and the first target mark position are symmetrically distributed relative to one coordinate axis of three-dimensional coordinate axes;
if the first target mark position has a dual target mark position, marking the dual target mark position as a second target mark position;
s300: sequentially acquiring a first heart three-dimensional mapping pulse signal of a first target mapping position and a second heart three-dimensional mapping pulse signal of a second target mapping position;
s400: based on the first heart three-dimensional mapping pulse signal and the second heart three-dimensional mapping pulse signal, a first heart three-dimensional mapping diagram is constructed by combining the synchronously acquired first electrocardiograph and respiration gate control data.
2. The method according to claim 1, wherein in the step S200, if the dual target mark position does not exist in the first target mark position, the electrocardiograph is turned on while the pulse detection is performed on the first target mark position;
the electrocardiograph monitor obtains second electrocardiograph and respiratory gating data while pulse detection is carried out on the first target mark position to obtain a third heart three-dimensional mark pulse signal;
the next heart three-dimensional target marking position is acquired as the first target marking position and the step S200 is continued.
3. The method of claim 2, wherein after all the three-dimensional target mapping positions of the heart are detected, time synchronizing all the three-dimensional mapping pulse signals of the third heart in accordance with the detection sequence based on the corresponding second electrocardiograph and respiratory gating data.
4. The method of claim 2, wherein the first and third cardiac three-dimensional mapping pulse signals comprise potential signal pulses and pulse widths.
5. The method for detecting a three-dimensional mapping pulse signal of a heart according to claim 1, wherein the step S200 further comprises:
determining a target mapping plane, the target mapping plane having a first dimension axis and a second dimension axis;
the first dimension axis and the second dimension axis are any two dimension axes in a three-dimensional coordinate axis;
the dual target mapping locations and the first target mapping locations are symmetrically distributed with respect to the first dimension axis or the second dimension axis.
6. The method for detecting a three-dimensional mapping pulse signal of a heart according to claim 1, wherein in the step S100, a plurality of three-dimensional target mapping positions of the heart to be detected are determined by a three-dimensional reconstruction model of the heart.
7. The system comprises a three-dimensional reconstruction unit, a target position determining unit, a dual judging unit, a pulse signal acquiring unit, a synchronizing unit and a heart three-dimensional map constructing unit;
the method is characterized in that:
the three-dimensional reconstruction unit is used for reconstructing a three-dimensional model of the heart to be detected, and the three-dimensional model comprises a plurality of three-dimensional coordinates;
the target mapping position determining unit is used for determining a plurality of heart three-dimensional target mapping positions to be detected based on a plurality of three-dimensional coordinates of the three-dimensional model;
the dual judging unit is used for judging whether dual target marking positions exist in the three-dimensional target marking positions of each heart;
the pulse signal acquisition unit is used for acquiring a heart three-dimensional mapping pulse signal of each heart three-dimensional target mapping position;
the synchronization unit is used for performing time synchronization on the heart three-dimensional mapping pulse signals at a plurality of different positions;
the heart three-dimensional map construction unit constructs a heart three-dimensional map based on the heart three-dimensional map pulse signals and the electrocardio and respiratory gating data of each heart three-dimensional target mapping position;
wherein, judge whether each heart three-dimensional target mark position has dual target mark position, specifically:
and judging whether each heart three-dimensional target mapping position has another heart three-dimensional target mapping position symmetrically distributed relative to one coordinate axis of the three-dimensional coordinate axes.
8. The cardiac three-dimensional mapping pulse signal detection system of claim 7, further comprising an electrocardiograph monitor for acquiring the electrocardiographic and respiratory gating data.
9. The cardiac three-dimensional mapping pulse signal detection system of claim 7, further comprising a mapping plane determination unit for determining a target mapping plane, the target mapping plane having a first dimension axis and a second dimension axis; the first dimension axis and the second dimension axis are any two dimension axes in a three-dimensional coordinate axis;
judging whether dual target marking positions exist in each heart three-dimensional target marking position or not, specifically:
it is determined whether there is another cardiac three-dimensional target mapping position symmetrically distributed with respect to the first dimension axis or the second dimension axis for each cardiac three-dimensional target mapping position.
10. A heart three-dimensional mapping pulse signal detection system according to claim 7,
the pulse signal acquisition unit comprises a plurality of multi-electrode mapping catheters, wherein the plurality of multi-electrode mapping catheters comprise a first multi-electrode mapping catheter and a second multi-electrode mapping catheter;
the number of electrodes of the first multi-electrode mapping catheter is less than the number of electrodes of the second multi-electrode mapping catheter;
and detecting a second heart three-dimensional target mapping position through the first multi-electrode mapping catheter when the dual target mapping position does not exist in the first heart three-dimensional target mapping position.
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