Systems for linking features in medical images to anatomical models and methods of operation thereof
11094138 · 2021-08-17
Assignee
Inventors
Cpc classification
A61B8/5238
HUMAN NECESSITIES
G16Z99/00
PHYSICS
G06T19/20
PHYSICS
G16H30/00
PHYSICS
A61B8/483
HUMAN NECESSITIES
A61B8/5292
HUMAN NECESSITIES
International classification
A61B8/00
HUMAN NECESSITIES
G06T19/20
PHYSICS
G16H30/00
PHYSICS
Abstract
A medical imaging system configured to link acquired images to markers or tags on an anatomical illustration, based, at least in part on spatial and anatomical data associated with the acquired image. The medical imaging system may be further configured to generate a diagnostic report including the anatomical illustration containing the markers. The diagnostic report may allow a user to select a marker to view information associated with an acquired image and/or the acquired image. Multiple images may be associated with a marker, and/or multiple markers may be associated with an image. A set of 2D and/or 3D anatomical illustrations may be generated which contains markers from multiple diagnostic reports and updated automatically for an individual patient's anatomical model by the application to reflect measurements and/quantitative findings related to organ, tissue, and vessel size, location, deformation, and/or obstruction.
Claims
1. A medical imaging system comprising: a first non-transitory computer readable storage medium containing a plurality of ultrasound images and spatial data associated with each of the plurality of ultrasound images; a second non-transitory computer readable storage medium containing a dataspace comprising data representing an anatomical model from which renderings of the anatomical model from different perspectives can be generated; and a processor configured to: receive the spatial data from the first non-transitory computer readable storage medium; and for each of the plurality of ultrasound images, generate a respective marker in the dataspace, wherein each of the respective markers links the spatial data associated with the respective ultrasound image to the data representing the anatomical model such that changing a viewing perspective of the rendering of the anatomical model does not change a spatial location of the marker with respect to the anatomical model.
2. The medical imaging system of claim 1, wherein the marker links data associated with a measurement obtained from the ultrasound image to a corresponding spatial location of the anatomical model.
3. The medical imaging system of claim 2, wherein the processor is further configured to modify dimensions of the anatomical model according to the measurement obtained from the ultrasound image.
4. The medical imaging system of claim 1, wherein the processor is further configured to modify the anatomical model, based at least in part, on the spatial data associated with the image.
5. The medical imaging system of claim 1, wherein the marker links data associated with three-dimensional findings or anatomical visualization notes associated with the ultrasound image to one or more corresponding locations of the anatomical model.
6. A method of linking data in a medical imaging system, the method comprising: receiving spatial data associated with one or more ultrasound images; for each of the one or more ultrasound images, generating a respective marker in a dataspace comprising data associated with an anatomical model that represents human anatomy, wherein each of respective markers links a measurement or finding based on the respective ultrasound image to a corresponding spatial location of the human anatomy, the measurement being selected from the group comprising of a width of a blood vessel in the image.
7. The method of claim 6, wherein the method further comprises modifying dimensions of the anatomical model to reflect the measurement.
8. The method of claim 6, further comprising modifying data in the dataspace based, at least in part, on the spatial data associated with the one or more ultrasound images.
9. The method of claim 6, further comprising: rendering an illustration of the human anatomy from the data of the dataspace; and displaying the illustration, with a display, wherein the respective markers are displayed on the illustration at the corresponding spatial locations of the human anatomy.
10. The method of claim 9, further comprising updating the rendering of the illustration to display the human anatomy from a different viewing perspective without changing the corresponding spatial locations of the respective markers relative to the human anatomy.
11. The method of claim 6, further comprising: generating a diagnostic report, wherein the diagnostic report includes the one or more ultrasound images and the respective markers.
12. The method of claim 11, wherein the diagnostic report comprises an illustration of the human anatomy having dimensions that are based at least in part on the one or more ultrasound images.
Description
(1) In the drawings:
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(15) The following description of certain exemplary embodiments is merely exemplary in nature and is in no way intended to limit the invention or its applications or uses. In the following detailed description of embodiments of the present systems and methods, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments in which the described systems and methods may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the presently disclosed systems and methods, and it is to be understood that other embodiments may be utilized and that structural and logical changes may be made without departing from the spirit and scope of the present system.
(16) The following detailed description is therefore not to be taken in a limiting sense, and the scope of the present system is defined only by the appended claims. The leading digit(s) of the reference numbers in the figures herein typically correspond to the figure number, with the exception that identical components which appear in multiple figures are identified by the same reference numbers. Moreover, for the purpose of clarity, detailed descriptions of certain features will not be discussed when they would be apparent to those with skill in the art so as not to obscure the description of the present system.
(17) In some embodiments, there are provided a system, application, and/or method for automatically generating a diagnostic report or a portion of a diagnostic report from findings or measurements made on medical images so as to standardize medical image reporting, which may reduce preparation times, evaluation times, and errors. The present invention includes, for example, associating measurements (e.g., from ultrasound images) with an anatomical model representing a patient's anatomy including, e.g., various body parts, such as tissues, organs, musculoskeletal tissue and/or blood vessels. Costs for acquiring, reporting, and/or evaluating medical images may be reduced. Diagnoses and/or evaluation of treatment efficacy may also be improved. In addition, the present invention provides several other useful aspects. For example, the systems and methods of the present invention further include dynamic updating of the actual dimensions of the patient's anatomy in real-time or after image acquisition to show the patient's features as they have been recorded and subsequently measured in an image, such as an ultrasound image. These features of the present invention provide a dynamic representation of a patient's actual anatomical dimensions in the form of a 3D anatomical model that is stored digitally and can be readily reviewed by physicians and other medical practitioners alike. Furthermore, the automatic or manually initiated adjustment of the anatomical model can be used, e.g., with measuring blood vessels with artheroschlerotic plaques or organ sizing as well.
(18) Referring to
(19) The beamformed signals are coupled to a signal processor 22. The signal processor 22 can process the received echo signals in various ways, such as bandpass filtering, decimation, I and Q component separation, and harmonic signal separation. The signal processor may also perform additional signal enhancement such as speckle reduction, signal compounding, and noise elimination. The processed signals are coupled to a B mode processor 26 and a Doppler processor 28. The B mode processor 26 employs amplitude detection for the imaging of structures in the body such as a tumor. The Doppler processor 28 processes temporally distinct signals from tissue and blood flow for the detection of the motion of substances such as the flow of blood cells in the image field. The structural and motion signals produced by the B mode and Doppler processors are coupled to a scan converter 32 and a multiplanar reformatter 44. The scan converter 32 arranges the echo signals in the spatial relationship from which they were received in a desired image format. For instance, the scan converter 32 may arrange the echo signal into a two dimensional (2D) sector-shaped format, or a pyramidal three dimensional (3D) image. The scan converter 32 can overlay a B mode structural image with colors corresponding to motion at points in the image field corresponding with their Doppler-estimated velocities to produce a color Doppler image which depicts the motion of tissue and blood flow in the image field. The multiplanar reformatter 44 can convert echoes which are received from points in a common plane in a volumetric region of the body into an ultrasonic image of that plane, as described in U.S. Pat. No. 6,443,896 (Detmer). A volume renderer 42 converts the echo signals of a 3D data set into a projected 3D image as viewed from a given reference point, e.g., as described in U.S. Pat. No. 6,530,885 (Entrekin et al.) The 2D or 3D images are coupled from the scan converter 32, multiplanar reformatter 44, and volume renderer 42 to an image processor 30 for further enhancement, buffering and temporary storage for display on an image display 40.
(20) In accordance with the principles of the present invention, 2D or 3D images are coupled to the anatomical information processor 34. The anatomical information processor 34 operates as described below to encode anatomical location information from the images acquired with the ultrasound system. The anatomical information processor 34 may receive input from the user control panel 38, such as the type of exam performed and which standard view is being acquired. Output data from the anatomical information processor 34 is coupled to a graphics processor 36 for the reproduction of output data from the processor with the image on the display 40. The graphics processor 36 can also generate graphic overlays for display with the ultrasound images. These graphic overlays can contain standard identifying information such as patient name, date and time of the image, imaging parameters, and the like. For these purposes the graphics processor receives input from the user interface 38, such as a typed patient name. The user interface is also coupled to the transmit controller 18 to control the generation of ultrasound signals from the transducer array 10′ and hence the images produced by the transducer array and the ultrasound system. The user interface is also coupled to the multiplanar reformatter 44 for selection and control of a display of multiple multiplanar reformatted (MPR) images.
(21) The anatomical information processor 34 may retrieve spatial and anatomical data relating to the images acquired by the imaging system. This data may be calculated in real time by the imaging system by an anatomical image processor (not shown), an example of which can be found in patent application PCT/IB2011/053710, “Automated three dimensional aortic root measurement and modeling.” Other image analysis methods may also be used to obtain the spatial and anatomical data from the acquired images. In another embodiment, the spatial and anatomical data for standard views taken during routinely prescribed imaging exams may be stored in a database 46 accessible to the anatomical information processor 34. The stored data may be compliant with a standard, for example, the Digital Imaging and Communications in Medicine (DICOM) standard. The DICOM standard includes a meta tag that may enable a specific diagnostic code, either for diagnostic outcomes tracking or medical billing purposes.
(22) The anatomical information processor 34 may access storage containing information relating to a dataspace 48. The dataspace may be 2D or 3D. In some embodiments, the dataspace includes data representing an anatomical model of human anatomy, and a 2D or 3D illustration of human anatomy may be rendered from the data of the dataspace. As described further herein, the anatomical model can be provided with standard dimensions and measurements and other information can be linked directly to the anatomical model. Moreover, when sufficient 3D data is available from ultrasound quantification tools and/or measurement applications, the present invention can automatically render or redraw the presence, outline, location, and relative anatomical volume of the place to scale relative to the patient's spatial anatomical model. For example, the dimensions of the anatomical model can be updated automatically or manually to represent actual measurements and dimensions of a particular patient based on the imaging data, e.g., from a 3D ultrasound image. In one embodiment, a user can measure the actual dimensions of the patient's anatomy and then the anatomical information processor 34 can update the dimensions of the anatomical model accordingly. Alternatively, the anatomical information processor 34 can also be configured to calibrate the dataspace and the acquired images to automatically update the dimensions of the anatomical model in accordance with actual dimensions of the patient's anatomy. In general, the manual or automatic updating of the anatomical model can be applied to any anatomy that can be imaged, e.g., by ultrasound imaging techniques. For example, a patient's heart, blood vessels, liver, kidney, and other organs can be measured, displayed, reported, and/or used to update the anatomical model in the diagnostic reports for real-time or later review by a user. Real-time images can be generated and included in the diagnostic report along with the anatomical model. In some embodiments, the images can be generated over time to allow for additional information with respect to data trends, such as shrinkage or growth of certain regions of interest (e.g., a tumor) of a patient's anatomy.
(23) An example dataspace of human anatomy may be provided by 3D anatomical modeling companies that support unique spatial identifiers within those anatomical dataspaces, but other dataspaces may be used. The rendering may be performed by the graphics processor 36 and displayed on the display 40. The rendered illustrations of human anatomy may replace the worksheets currently used in diagnostic reports. The anatomical information processor 34 may be capable of performing a conversion between the spatial and anatomical data associated with the acquired images and the data associated with the dataspace. The anatomical information processor 34 may further link the acquired image or images associated with the data associated with the dataspace. Series of images that may be displayed sequentially, comprising a time-elapsed loop or “movie,” may also be linked. The anatomical information processor 34 may also be capable of performing a conversion between the data associated with the dataspace and the spatial and anatomical data associated with the acquired images. The anatomical information processor 34 may further link the data associated with the dataspace to the corresponding acquired image or images. The linking processes described may also be referred to as tagging. The links, images, and other information may be saved by the anatomical information processor 34 in a report storage 50. The report storage 50 may be accessible to the anatomical information processor 34, the graphics processor 36, the user control panel 38, other elements of the imaging system 100, and/or a remote computer terminal (not shown).
(24) When a measurement or other notation is made on an acquired image, the anatomical information processor 34 may automatically link the measurement or other notation and the associated acquired image with a marker or tag associated with the dataspace. In some examples, a DICOM meta tag or other information may be linked to the dataspace. In some embodiments, a DICOM meta tag can also include a specific diagnostic code, either for diagnostic outcomes tracking or medical billing purposes, which could be linked with the presence of a pin or other marker in the dataspace. The marker includes information which may cause it to appear in the corresponding anatomical place in the anatomical model representing the patient's anatomy, which corresponds to the anatomical location where the image was acquired. The link may be dynamic in that any changes to the measurement and/or notation are propagated to the marker, and any changes made to the marker are propagated back to the measurement and/or notation. In addition, the relationship of the spatial marker to the medical image and the overall anatomical model of the patient's anatomy can be viewed from multiple perspectives (pre-set or freehand) that are controlled by the user's “virtual camera” perspective. The user can view multiple perspectives and directly manipulate their perspective of the same spatial marker relative to the ultrasound data set and anatomical model through a variety of interaction methods (touch screen interactions, movements, and gestures; non-surface hand gestures and movements; computer controllers based on eye-tracking technology; trackballs; trackpads; computer mice; keyboard controls). Moreover, the system may further update the dimensions of the anatomical model to represent the actual measured dimensions of the patient's anatomy, as described herein.
(25) In some embodiments of the present invention, additional information about the patient's anatomy can be provided and linked and/or further displayed on an anatomical model. In one embodiment, one or a sequence of elastography images (elastograms) can be acquired with an ultrasound probe, which is used to vary the pressure and compress a region of interest of an anatomic mass within the body. A region of interest can be identified in one or more of the images and then linked to the anatomical model to provide further information about the tissue. For example, a liver can be scanned and displayed in the anatomical model, and an associated elastogram can be linked to the region of the liver containing a lesion that shows different strain data than surrounding healthy tissue in the liver. Moreover, the region showing different strain can be overlaid on the anatomical model to identify to a physician where the lesion may be located with respect to the remained of the liver. In another embodiment, volume deformations can be depicted and identified with the anatomical model. For example, a portion of the patient's kidney may be imaged and measured. After measuring the kidney, it may become apparent that the kidney tissue is deformed. This deformation can be manually or automatically integrated with the anatomical model to show the actual dimensions of the deformation. Furthermore, a marker can be linked to the location of the anatomical model to provide further information about the deformation to a user reviewing the diagnostic report.
(26) In an exemplary embodiment of the invention, an imaging technician may perform a process 2200 as illustrated in the flowchart in
(27) In accordance with the principles of the present invention, a diagnostic report may be reviewed following a process 3300 illustrated in
(28) An example of an anatomical illustration 260 portion of a diagnostic report is shown in a screen shot 200 in
(29) The user may navigate through the rendered illustration 260 of the diagnostic report. The relationship of a marker to a medical image and the overall model of the patient's anatomy may be viewed from multiple perspectives. The perspectives may be pre-set or manually chosen by the user. The perspectives may be controlled by a “virtual camera” control, which may allow the user to zoom in and out or pan through the rendering. For example, the user may rotate or zoom in on a portion of the illustration as shown in screen shot 300 in
(30) Other graphical indicators may be used to designate different measurements or findings in the anatomical illustration 260.
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(32) In some embodiments, a user may open the acquired images in an advanced image analysis software package such as QLab™. The user could make more advanced measurements or analysis on the acquired images. For example, the user may analyze cardiac output and/or movement. These additional findings made in the image analysis software may also be automatically linked to the anatomical illustration in the diagnostic report.
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(35) The sonographer opens a marker interface 705 shown in screen shot 700 in
(36) In the screen shot 800 shown in
(37) The examples described in reference to
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(40) In an embodiment of the invention, a user may be able to open two or more diagnostic reports from different exams and have the markers generated from each report displayed on the same rendered anatomical illustration. The markers may be from images taken with one or more different imaging modalities. The markers may be dated or color-coded to indicate which exam the marker is associated with, but other indicators may be used. This may facilitate tracking findings and measurements in a patient over time and improve diagnosis or treatment. It may also assist in comparing results from two different imaging modalities.
(41) According to the principles of the present invention, the anatomical information processor 34 may be capable of interpreting the spatial and anatomical data from the acquired image and changing the dataspace to reflect the anatomy in the acquired image. For example, a heart image may be acquired from a patient with an abnormally sized left ventricle. The anatomical information processor 34 may alter the data in the dataspace associated with the heart to reflect this information. Accordingly, when the graphics processor 36 renders the anatomical illustration in the diagnostic report, the heart in the illustration may be rendered to have the abnormally sized left ventricle. This may provide better understanding of anatomical irregularities for a physician rather than an imaging technician linking the acquired heart images to the anatomical illustration with a notation of the irregularity.
(42) Although not always shown, the screens 200, 300, 400, 500, 600, 700, 800, and/or 900 may also illustrate user selections which may include, for example, icons or menu items which may be selected by the user to, for example, scan, file, print, transfer images (e.g., from one display to another), mute, transcribe, and/or use a headpiece, as desired. Further, one or more menus as is known in the art may be provided for a user's convenience. The displayed images and associated data may be saved at any time during the processes shown in
(43) Although the present system has been described with reference to an ultrasound imaging system, it is also envisioned that the present system can be extended to other medical imaging systems where one or more images are obtained in a systematic manner. Accordingly, the present system may be used to obtain and/or record image information related to, but not limited to renal, testicular, breast, ovarian, uterine, thyroid, hepatic, lung, musculoskeletal, splenic, cardiac, arterial and vascular systems, as well as other imaging applications related to ultrasound-guided interventions. Further, the present system may also include one or more programs which may be used with conventional imaging systems so that they may provide features and advantages of the present system.
(44) Further, the present systems, apparatuses, and methods, may also be extended to any small parts imaging where the clear landmarks can be defined and reproduced. Further, the present methods may be embedded in a program code which may be applied to existing imaging systems such as, for example, ultrasonic imaging systems. Suitable ultrasonic imaging systems may include a Philips ultrasound system which may, for example, support a conventional broadband linear array transducer that may be suitable for small-parts imaging. Further, analysis techniques such as, for example, QLAB™ may be available on-cart with an imaging apparatus or as a post-processing program which may be run outside of an examination room. Further, multiple nodules, anatomical entities such as follicles, or other detectible objects, may be marked using the present system. Further, the method of the present systems may be applied to volumes acquired using transducers such as, for example, 2D array transducers, which may include, for example, X-matrix™ or mechanical transducers.
(45) Certain additional advantages and features of this invention may be apparent to those skilled in the art upon studying the disclosure, or may be experienced by persons employing the novel system and method of the present invention, chief of which is that a more reliable image acquisition system and method of operation thereof is provided. Another advantage of the present systems and method is that conventional medical image systems can be easily upgraded to incorporate the features and advantages of the present systems, devices, and methods.
(46) Of course, it is to be appreciated that any one of the above embodiments or processes may be combined with one or more other embodiments and/or processes or be separated and/or performed amongst separate devices or device portions in accordance with the present systems, devices and methods.
(47) Finally, the above-discussion is intended to be merely illustrative of the present system and should not be construed as limiting the appended claims to any particular embodiment or group of embodiments. Thus, while the present system has been described in particular detail with reference to exemplary embodiments, it should also be appreciated that numerous modifications and alternative embodiments may be devised by those having ordinary skill in the art without departing from the broader and intended spirit and scope of the present system as set forth in the claims that follow. Accordingly, the specification and drawings are to be regarded in an illustrative manner and are not intended to limit the scope of the appended claims.