JP2012223447A - Ultrasonic diagnostic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate changeover of display of two or more kinds of generated images, and change of a synthesis ratio of an image for which the two or more kinds of generated images are synthesized, in an ultrasonic diagnostic apparatus.SOLUTION: The ultrasonic diagnostic apparatus 1 includes: an ultrasonic probe 10 for transmitting and receiving ultrasonic waves; a transmission/reception circuit 31 for receiving reception signals on the basis of the received ultrasonic waves; a signal processing circuit 33 for generating ultrasonic image data on the basis of the reception signals; and a display device 40 which has a plurality of pixels, has a plurality of picture elements corresponding to the two or more kinds of image data including the ultrasonic image data arrayed in each of the plurality of pixels, includes a lenticular lens having an axis in a direction orthogonal to the array direction of the plurality of picture elements on a front surface of the plurality of pixels, and is capable of displaying the two or more kinds of image data.

Description

  An embodiment as one aspect of the present invention relates to an ultrasonic diagnostic apparatus that displays a plurality of types of image data.

  The ultrasonic diagnostic apparatus can display, for example, the state of heart beat and fetal movement in real time by a simple operation of simply touching the ultrasonic probe from the body surface. In addition, since the ultrasonic diagnostic apparatus is not exposed to X-rays or the like and has high safety, it can be repeatedly examined. Furthermore, the size of the ultrasonic diagnostic apparatus is smaller than that of other medical apparatuses such as an X-ray apparatus, an X-ray CT (computed tomography) apparatus, an MRI (magnetic resonance imaging) apparatus, and a PET (positron emission tomography). In addition, the inspection can be easily performed while moving to the bedside. Due to such convenience, the ultrasonic diagnostic apparatus is now widely used in the heart, abdomen, urology, and obstetrics and gynecology.

  In the ultrasonic diagnostic apparatus, a plurality of types of image data may be displayed side by side. For example, in an ultrasonic diagnostic apparatus, B-mode image data and CDI (color doppler imaging) image data are displayed side by side, or B-mode image data, CDI image data, and CT image data are displayed side by side. (For example, refer to Patent Document 1).

JP 2011-11001 A

  According to the prior art, an operator (inspector) performs composition or comparison in his / her head while viewing a plurality of types of displayed image data. However, the composition or comparison of a plurality of types of displayed image data often depends on the ability of the operator.

  Further, according to the prior art, the accuracy is low in terms of positional matching between a plurality of types of image data.

  In order to solve the above-described problem, the ultrasonic diagnostic apparatus according to the present embodiment includes an ultrasonic probe that transmits and receives an ultrasonic wave, a reception unit that receives a reception signal based on the received ultrasonic wave, and the reception signal. And a plurality of picture elements corresponding to a plurality of types of image data including a plurality of pixels, each of the plurality of pixels including the ultrasound image data. And display means provided with changing means capable of changing the image data to be displayed according to the line-of-sight direction among the plurality of types of image data by displaying the plurality of types of image data.

  In order to solve the above-described problem, the ultrasonic diagnostic apparatus according to the present embodiment includes an ultrasonic probe that transmits and receives an ultrasonic wave, a reception unit that receives a reception signal based on the received ultrasonic wave, and the reception signal. And image data to be displayed according to the line-of-sight direction among the plurality of types of image data by displaying a plurality of types of image data including the ultrasound image data. And display means capable of changing.

Schematic which shows the structure of the ultrasonic diagnosing device of this embodiment. The figure which shows the example of multiple types of three-dimensional ultrasonic image data. (A) is the schematic which shows the structure of the display apparatus with which the ultrasound diagnosing device of this embodiment is equipped, (b) is II sectional drawing shown to Fig.3 (a). The figure which shows the example of three types of three-dimensional image data allocated to three picture elements. The figure for demonstrating the several gaze direction with respect to a display apparatus, and the several three-dimensional image which can each be seen with a some gaze direction. The figure which shows the example of two types of three-dimensional image data allocated to two picture elements. The figure for demonstrating the several gaze direction with respect to a display apparatus, and the several three-dimensional image which can each be seen with a some gaze direction.

  The ultrasonic diagnostic apparatus of this embodiment will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram illustrating the configuration of the ultrasonic diagnostic apparatus according to the present embodiment.

  FIG. 1 shows an ultrasonic diagnostic apparatus 1 according to this embodiment. The ultrasonic diagnostic apparatus 1 applies a system that spatially scans an ultrasonic beam to acquire and display three-dimensional image data in real time. The ultrasonic diagnostic apparatus 1 includes an ultrasonic probe 10, a position sensor 20, an apparatus main body 30, and a display device 40.

  In the ultrasonic probe 10, a plurality of ultrasonic transducers (piezoelectric elements) (not shown) are arranged in a straight line or in a two-dimensional array. Each ultrasonic transducer is driven under the control of the apparatus main body 30 and scans an ultrasonic beam in accordance with preset transmission beam forming conditions toward the subject (part) O in a three-dimensional manner. In addition, each ultrasonic transducer receives an ultrasonic echo signal that returns to the ultrasonic probe 10 due to reflection at the acoustic impedance boundary of the subject O or scattering by a minute scatterer with respect to the ultrasonic beam, and echoes with a weak voltage. The signal is converted into a signal and received, and the received signal is sent to the apparatus main body 30.

  Examples of the ultrasonic probe 10 include a mechanical three-dimensional probe and a 2D probe (matrix array probe). The mechanical three-dimensional probe is a probe that can mechanically swing a group of ultrasonic transducers arranged in a large number (for example, 100 to 200) only in the azimuth direction, or a large number in the azimuth direction and a small number in the elevation direction. This is a probe capable of mechanically swinging (for example, three) arranged ultrasonic transducer groups. The 2D probe is a probe in which a large number of ultrasonic transducers are arranged in both the azimuth direction and the elevation direction.

  When the ultrasonic probe 10 is a mechanical three-dimensional probe, in order to form an appropriate ultrasonic beam extending in the depth direction by converging the ultrasonic wave in the azimuth direction, a plurality of ultrasonic transducers arranged in the azimuth direction. To focus electronically. On the other hand, when the ultrasonic probe 10 is a mechanical three-dimensional probe, in order to converge the ultrasonic wave in the elevation direction and form an appropriate ultrasonic beam extending in the depth direction, one ultrasonic wave is formed in the elevation direction. It is preferable that an acoustic lens is provided on the ultrasonic wave irradiation side of the ultrasonic vibrator, or the ultrasonic vibrator is a concave vibrator. Alternatively, when the ultrasonic probe 10 is a mechanical three-dimensional probe, in order to form an appropriate ultrasonic beam extending in the depth direction by converging the ultrasonic wave in the elevation direction, a small number of ultrasonic waves in the elevation direction are used. An acoustic lens is provided on the ultrasonic wave irradiation side of the vibrator, or a small number of ultrasonic vibrators are driven in the elevation direction according to the position in the depth direction of the focal point. When scanning a plurality of scanning sections using a mechanical three-dimensional probe, a plurality of two-dimensional sections are scanned by an ultrasonic beam formed by ultrasonic waves while the ultrasonic transducer group is being swung.

  When the ultrasonic probe 10 is a 2D probe, a plurality of ultrasonic probes are arranged in the azimuth direction and the elevation direction in order to converge the ultrasonic waves in the azimuth direction and the elevation direction to form an appropriate ultrasonic beam extending in the depth direction. Electronic focusing is performed by an ultrasonic transducer. When scanning a plurality of scanning sections using a 2D probe, a plurality of two-dimensional sections are scanned with an ultrasonic beam formed by ultrasonic waves while electronically shifting the ultrasonic transmission surface in the elevation direction.

  The position sensor 20 is attached to the ultrasonic probe 10 and detects the three-dimensional position of the ultrasonic probe 10 and the scanning direction and direction of the ultrasonic probe 10.

  The apparatus main body 30 includes a transmission / reception circuit 31, a reception delay circuit 32, a signal processing circuit 33, an image reading unit 34, a control unit 35, an image memory 36, an input device 37, an IF (interface) 38, and a display processing unit 39.

  The transmission / reception circuit 31 is connected to the ultrasonic probe 10. The transmission / reception circuit 31 includes a transmission pulse generation circuit 31a, a T / R (transmitter / receiver) 31b, and a preamplifier 31c. The transmission pulse generation circuit 31a generates a pulse voltage for controlling the direction and convergence of the ultrasonic beam by the ultrasonic probe 10 based on preset three-dimensional transmission beamforming conditions, under the control of the control unit 35. The T / R 31b supplies a drive signal based on the pulse voltage generated by the transmission pulse generation circuit 31a to the ultrasonic probe 10 via the transmitter. Further, the T / R 31b receives a reception signal from the ultrasonic probe 10. The preamplifier 31 c amplifies the reception signal received via the receiver of the T / R 31 b and sends the amplified signal to the reception delay circuit 32.

  The reception delay circuit 32 is connected to the output side of the preamplifier 31 c of the transmission / reception circuit 31. The reception delay circuit 32 includes a plurality of beamformers that can receive signals received from the preamplifier 31c in parallel and simultaneously. Each beamformer applies a reception delay so as to satisfy the conditions of the ultrasonic beam direction and focusing in a preset three-dimensional reception beamforming for each reception signal. The reception delay circuit 32 supplies the delay signal to the signal processing circuit 33 at the next stage.

  The signal processing circuit 33 is connected to the reception delay circuit 32. The signal processing circuit 33 includes a B-mode processing circuit 33a, a CDI (color doppler imaging) processing circuit 33b, and a TDI (tissue doppler imaging) processing circuit 33c.

  Under the control of the control unit 35, the B-mode processing circuit 33a performs quadrature detection on the reception signal from the reception delay circuit 32 using a predetermined reference frequency, and the B of the subject O corresponding to the signal amplitude of the detection signal. Generate mode fault data and volume data. The B-mode processing circuit 33a generates B-mode two-dimensional ultrasound image data based on the B-mode tomographic data, or performs VR (volume rendering) or MPR (multi-planar) on the B-mode volume data. Image processing such as reconstruction (cross-section conversion method) is performed to generate B-mode three-dimensional ultrasound image data. The B-mode two-dimensional ultrasonic image data or the three-dimensional ultrasonic image data is converted into a scanning line signal sequence in a video format and sent to the display processing unit 39.

  The CDI processing circuit 33b measures the time change of the phase of the received signal from the reception delay circuit 32 according to the control by the control unit 35, thereby indicating the blood flow information of the subject O, the speed, the power, the dispersion, etc. CDI tomographic data and volume data based on the above are generated. Also, the CDI processing circuit 33b generates CDI two-dimensional ultrasound image data based on CDI tomographic data, or performs image processing such as VR or MPR on CDI volume data to obtain CDI 3 Dimensional ultrasound image data is generated. The CDI two-dimensional ultrasonic image data or three-dimensional ultrasonic image data is sent to the display processing unit 39 converted into a scanning line signal sequence in a video format.

  The TDI processing circuit 33c measures the time change of the phase of the received signal from the reception delay circuit 32 according to the control by the control unit 35, thereby determining the TDI based on the motion speed, power, dispersion, etc. of the tissue of the subject. Tomographic data and volume data are generated. The TDI processing circuit 33c generates TDI two-dimensional ultrasonic image data based on the TDI tomographic data, or performs image processing such as VR and MPR on the TDI volume data to obtain the TDI 3 Dimensional ultrasound image data is generated. The TDI two-dimensional ultrasonic image data or three-dimensional ultrasonic image data is sent to the display processing unit 39.

  Based on the three-dimensional position of the ultrasonic probe 10 detected by the position sensor 20 and the scan direction / orientation of the ultrasonic probe 10, the image reading unit 34 is connected to the network N via the IF 38 under the control of the control unit 35. 2D image data or 3D image data relating to the same subject O is read out. The image reading unit 34 reads, for example, three-dimensional CT image data generated in the past by the X-ray CT apparatus. The image reading unit 34 may read two-dimensional image data or three-dimensional image data generated in the past by an MRI apparatus, a PET apparatus, or the like.

  The control unit 35 includes a CPU (central processing unit) and an internal storage device (not shown). The CPU is a control device having a configuration of an integrated circuit (LSI) in which an electronic circuit made of a semiconductor is enclosed in a package having a plurality of terminals. The internal storage device is a storage device having a configuration that combines elements such as a ROM (read only memory) and a RAM (random access memory). The internal storage device has a function of storing data and using it for temporary storage of the work memory of the CPU and data. The control unit 35 controls each unit via a bus.

  The image memory 36 is a storage device that stores image data output from the signal processing circuit 33 and the image reading unit 34 under the control of the control unit 35.

  The input device 37 is connected to the control unit 35. The input device 37 is equipped with input devices (other switches, various buttons, a keyboard, and the like) such as a joystick and a trackball for various settings and changes relating to the transmission / reception conditions of the ultrasonic beam. Information instructed by the operator through the input operation of the input device 37 is sent to the control unit 35. As a result, settings and changes are made in each unit in the apparatus main body 30.

  The IF 38 is connected to the control unit 35. The IF 38 is configured by a connector that conforms to a parallel connection specification or a serial connection specification, and performs communication control according to each standard. The IF 38 has a function capable of being connected to the network N, whereby the ultrasonic diagnostic apparatus 1 can be connected from the IF 38 to the network N network.

  The display processing unit 39 causes the display device 40 to display the two-dimensional image data or the three-dimensional image data sent from the signal processing circuit 33 and the image reading unit 34 under the control of the control unit 35. Hereinafter, as shown in FIG. 2, three types of image data, for example, B-mode three-dimensional ultrasound image data D1 generated by the B-mode processing circuit 33a, and three-dimensional CDI generated by the CDI processing circuit 33b are used. The case where the ultrasonic image data D2 and the three-dimensional CT image data D3 read by the image reading unit 34 are displayed on the display device 40 will be described. Needless to say, the image data to be displayed by the display processing unit 39 may be two or more types (plural types) or may be two-dimensional image data. Further, the image data displayed by the display processing unit 39 may be composed of only two or more types of ultrasonic image data.

  FIG. 3A is a schematic diagram showing the structure of the display device 40 provided in the ultrasonic diagnostic apparatus 1 of the present embodiment. FIG. 3B is a cross-sectional view taken along the line II shown in FIG.

  The display device 40 shown in FIGS. 3A and 3B is a display capable of displaying an image, for example, a liquid crystal display. The display device 40 includes a backlight 41, a liquid crystal panel (liquid crystal shutter) 42, and a lenticular lens array 43. The display device 40 is not limited to a liquid crystal display, and may be an organic EL (Electro Luminescence) display, a plasma display, or the like.

  The backlight 41 of the display device 40 includes a plurality of white LEDs (light emitting diodes) and is disposed on the back surface of the liquid crystal panel 42. The backlight 41 is turned on when a power supply voltage is applied from a backlight drive circuit (not shown), and illuminates the liquid crystal panel 42. Note that the backlight 41 is not limited to white LEDs, and may include LEDs of other colors. The backlight 41 may include, for example, a cold cathode fluorescent lamp (CCFL) instead of the LED.

  The liquid crystal panel 42 includes a plurality of pixels P provided in a matrix in the horizontal direction (x direction) and the vertical direction (y direction) of the liquid crystal panel 42. The pixel P includes a polarizing plate Pa, a glass substrate Pb, a pixel electrode (transparent conductive film) Pc, an alignment film Pd, a liquid crystal Pe, a counter electrode (transparent conductive film) Pf, and a color filter Pg.

  In the pixel P, a plurality of, for example, three picture elements for displaying three types of image data are arranged in the x direction of the liquid crystal panel 42. In the picture element, R (red), G (green), and B (blue) color filters Pg are arranged in the y direction, which is a direction perpendicular to the arrangement direction of the picture elements. Is formed. The arrangement direction of the picture elements is not limited to the x direction of the liquid crystal panel 42. In addition, the RGB surface (xy plane) shape is not limited to a rectangle. For example, the surface shape of RB may be a parallelogram inclined to the right (or left), and the surface shape of G may be a parallelogram inclined to the left (or right).

  The polarizing plate Pa is provided on the glass substrate Pb and has a function of allowing only light in a specific direction out of light from the backlight 41 to pass therethrough.

  The pixel electrode Pc is provided on the glass substrate Pb. The pixel electrode Pc is an electrode constituting a pixel provided on the thin film transistor (TFT) side of the electrodes sandwiching the liquid crystal Pe.

  The alignment film Pd is provided on each of the electrodes Pc and Pf and has a function of aligning liquid crystal molecules in a specific direction.

  The liquid crystal Pe has a function of changing the arrangement of molecular arrangement when an external voltage is applied.

  The counter electrode Pf is provided on the glass substrate Pb. The counter electrode Pf is an electrode provided on the side facing the TFT among the electrodes sandwiching the liquid crystal Pe.

  The color filter Pg is provided on the glass substrate Pb on the side facing the TFT, and each RGB is arranged for each pixel.

  The lenticular lens array 43 of the display device 40 shown in FIGS. 3A and 3B is provided on the front surface of the liquid crystal panel 42, and is a change that can change image data to be displayed according to the line-of-sight direction among a plurality of types of image data. Functions as a means. In the lenticular lens array 43, a plurality of lenticular lenses (kamaboko-shaped lenses) whose axis is the y direction perpendicular to the pixel arrangement direction are arranged in the x direction, which is the pixel arrangement direction. Note that the lenticular lens array 43 may be replaced with a fly-eye lens array in which fly-eye lenses assigned to each pixel P (a fly-eye lens, not shown) are arranged for a plurality of pixels P. Alternatively, the lenticular lens array 43 may be replaced with a parallax barrier (parallax barrier, not shown).

  As shown in FIG. 4, the display processing unit 39 assigns the three-dimensional CT image data D3 generated in advance to the leftmost picture element of the three picture elements constituting the pixel P, and assigns the real time to the central picture element. The CDI three-dimensional ultrasound image data D2 is sequentially assigned, and the real-time B-mode three-dimensional ultrasound image data D1 is sequentially assigned to the rightmost picture element. Then, the display processing unit 39 displays the three-dimensional image data D1, D2, D3 on the display device 40.

  FIG. 5 is a diagram for describing a plurality of line-of-sight directions with respect to the display device 40 and a plurality of three-dimensional images that are respectively visible in the plurality of line-of-sight directions.

  FIG. 5 shows a plurality of line-of-sight directions Va to Ve with respect to the display device 40 and a plurality of three-dimensional images respectively visible in the plurality of line-of-sight directions Va to Ve. When the display device 40 is viewed from the left line-of-sight direction Va toward the display device 40 by the action of the lenticular lens array 43 having an axis in the y direction of the display device 40, the pixel at the right end of the pixel P is viewed. Only the B-mode three-dimensional ultrasound image data D1 assigned to is visible, and when the display device 40 is viewed from the front viewing direction Vb toward the display device 40, the CDI assigned to the center pixel of the pixel P Only the 3D ultrasound image data D2 is visible, and when viewing the display device 40 from the right gaze direction Vc toward the display device 40, only the 3D CT image data D3 assigned to the leftmost pixel of the pixel P is visible. .

  Further, when the display device 40 is viewed from the line-of-sight direction Vd between the line-of-sight direction Va and the line-of-sight direction Vb by the action of the lenticular lens array 43 of the display device 40, the B-mode three-dimensional ultrasonic image data D1 and CDI 3 The three-dimensional ultrasonic image data D2 appears to be synthesized. When the display device 40 is viewed from the visual line direction Ve between the visual line direction Vb and the visual line direction Vc, the CDI three-dimensional ultrasonic image data D2 and the three-dimensional CT image data D3 are displayed. Appears to be synthesized. When the line-of-sight direction is gradually moved from the line-of-sight direction Va to the line-of-sight direction Vb, the composition ratio of the B-mode three-dimensional ultrasonic image data D1 seems to gradually decrease (become thin), while the CDI three-dimensional It seems that the composition ratio of the ultrasonic image data D2 gradually increases (becomes darker). Similarly, when the line-of-sight direction is gradually moved from the line-of-sight direction Vc to the line-of-sight direction Vb, the composition ratio of the three-dimensional CT image data D3 appears to gradually decrease, while the composition of the three-dimensional ultrasound image data D2 of CDI appears. The rate appears to increase gradually.

  The pixel P of the display device 40 has been described as being configured with three picture elements in accordance with the number of the three types of image data D1, D2, and D3, but the three types of image data D1, D2, and D3 are In order to display, the pixel P may be composed of three or more picture elements. For example, in order to display three types of image data D1, D2, and D3, when the pixel P is composed of four picture elements, the first image data D1 is assigned to the rightmost one picture element, and the third image is displayed. Data D3 is assigned to the leftmost one picture element, and second image data D2 is assigned to the two central picture elements. Further, for example, in order to display three types of image data D1, D2, and D3, when the pixel P is composed of six picture elements, the first image data D1 is assigned to the two rightmost picture elements, and the third Is assigned to the two leftmost picture elements, and the second image data D2 is assigned to the two middle picture elements.

  As described above, the case where three types of three-dimensional image data are displayed on the display device 40 has been described, but the display device 40 is not limited to display of three types of three-dimensional image data. The displayed image data may be two-dimensional image data, or two or more types. Hereinafter, a case where two types of three-dimensional image data are displayed will be described. When displaying two types of three-dimensional image data, it is preferable to use two picture elements as described in FIG.

  As shown in FIG. 6, the display processing unit 39 sequentially assigns real-time CDI three-dimensional ultrasound image data D2 to the leftmost picture element of the two picture elements constituting the pixel P, and assigns it to the rightmost picture element. Real-time B-mode three-dimensional ultrasound image data D1 is sequentially assigned. The display processing unit 39 displays the three-dimensional image data D1 and D2 on the display device 40.

  FIG. 7 is a diagram for describing a plurality of line-of-sight directions with respect to the display device 40 and a plurality of three-dimensional images that are respectively visible in the plurality of line-of-sight directions.

  FIG. 7 shows a plurality of line-of-sight directions Va to Vc with respect to the display device 40 and a plurality of three-dimensional images respectively visible in the plurality of line-of-sight directions Va to Vc. When the display device 40 is viewed from the left line-of-sight direction Va toward the display device 40 by the action of the lenticular lens array 43 having an axis in the y direction of the display device 40, the pixel at the right end of the pixel P is viewed. Only the B-mode three-dimensional ultrasound image data D1 assigned to is visible, and when viewing the display device 40 from the right viewing direction Vb toward the display device 40, the CDI assigned to the leftmost picture element of the pixel P is displayed. Only the three-dimensional ultrasonic image data D2 is visible.

  Further, when the display device 40 is viewed from the visual line direction Vc in front of the display device 40 due to the action of the lenticular lens array 43 of the display device 40, the B-mode three-dimensional ultrasonic image data D1 and the CDI three-dimensional ultrasonic waves are displayed. The image data D2 appears to be synthesized. When the line-of-sight direction is gradually moved from the line-of-sight direction Va to the line-of-sight direction Vb, the composite ratio of the B-mode three-dimensional ultrasonic image data D1 seems to gradually decrease, while the CDI three-dimensional ultrasonic image data It seems that the synthesis rate of D2 increases gradually.

  Note that the pixel P of the display device 40 is configured by two picture elements in accordance with the number of the two types of image data D1 and D2, but in order to display the two types of image data D1 and D2. The pixel P may be composed of two or more picture elements. For example, in order to display two types of image data D1 and D2, when the pixel P is composed of three picture elements, the first image data D1 is assigned to one rightmost picture element, and the second image data D2 Are assigned to the two leftmost pixels. For example, in order to display two types of image data D1 and D2, when the pixel P is composed of four picture elements, the first image data D1 is assigned to the rightmost two picture elements, and the second image is displayed. Data D2 is assigned to the two leftmost pixels.

  According to the ultrasonic diagnostic apparatus 1 of the present embodiment, the operator switches the display of a plurality of types of generated images and changes the composition ratio of an image obtained by combining the generated types of images. This can be easily realized by changing the line-of-sight direction with respect to 40. Moreover, according to the ultrasonic diagnostic apparatus 1 of the present embodiment, it is not necessary to compare / synthesize images by imagination in the examiner's head as in the prior art, without depending on the ability of the operator, and the position. Inspection by comparison / synthesis of images can be performed with high accuracy.

DESCRIPTION OF SYMBOLS 1 Ultrasonic diagnostic apparatus 10 Ultrasonic probe 20 Position sensor 30 Apparatus main body 31 Transmission / reception circuit 32 Reception delay circuit 33 Signal processing circuit 33a B mode processing circuit 33b CDI processing circuit 33c TDI processing circuit 34 Image reading part 35 Control part 40 Display apparatus 43 Lenticular lens array

Claims (7)

An ultrasound probe that transmits and receives ultrasound; and
Receiving means for receiving a received signal based on the received ultrasonic wave;
Ultrasonic image generating means for generating ultrasonic image data based on the received signal;
A plurality of pixels, a plurality of picture elements corresponding to a plurality of types of image data including the ultrasonic image data are arranged in each of the plurality of pixels, and the plurality of types of image data are displayed. Display means comprising a changing means capable of changing image data to be displayed according to the line-of-sight direction among the plurality of types of image data;
An ultrasonic diagnostic apparatus.   The ultrasound diagnostic apparatus according to claim 1, wherein the display unit is configured to display B-mode image data and blood flow image data as the ultrasound image data as the plurality of types of image data. A sensor that is attached to the ultrasonic probe and detects a three-dimensional position of the ultrasonic probe, and a scanning direction / orientation of the ultrasonic probe;
The pre-display means is acquired by at least one of the B-mode image data and the blood flow image data as the ultrasonic image data and the other types of medical devices as the plurality of types of image data, The ultrasonic diagnostic apparatus according to claim 1, wherein a three-dimensional position and image data corresponding to a scanning direction / orientation of the ultrasonic probe can be displayed.   The pre-display means can display B-mode image data and blood flow image data as the ultrasound image data, and CT image data acquired by an X-ray CT apparatus as the other type of medical device, The ultrasonic diagnostic apparatus according to claim 3, wherein three pixels are arranged in each pixel.   5. The display unit according to claim 1, wherein the number of image data of the plurality of types of image data is equal to the number of picture elements of the plurality of picture elements. Ultrasonic diagnostic equipment.   The display means includes, as the changing means, a lenticular lens array in which a plurality of lenticular lenses having axes in a direction orthogonal to the arrangement direction of the plurality of picture elements are arranged in the arrangement direction of the plurality of picture elements. The ultrasonic diagnostic apparatus according to any one of 5. An ultrasound probe that transmits and receives ultrasound; and
Receiving means for receiving a received signal based on the received ultrasonic wave;
Ultrasonic image generating means for generating ultrasonic image data based on the received signal;
Display means capable of changing image data to be displayed according to a line-of-sight direction among the plurality of types of image data by displaying a plurality of types of image data including the ultrasonic image data;
An ultrasonic diagnostic apparatus.