Noninvasive diagnostic system
Inventors
Mahfouz, Mohamed R. • Wasielewski, Ray C. • Komistek, Richard D.
Assignees
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Publication Number
US-11935648-B1
Publication Date
2024-03-19
Expiration Date
Abstract
A method for diagnosing a joint condition includes in one embodiment: creating a 3d model of the patient specific bone; registering the patient's bone with the bone model; tracking the motion of the patient specific bone through a range of motion; selecting a database including empirical mathematical descriptions of the motion of a plurality actual bones through ranges of motion; and comparing the motion of the patient specific bone to the database.
Core Innovation
The invention provides methods for generating a three dimensional (3D), patient-specific bone model by selecting a deformable 3D virtual bone model corresponding to a bone of a patient, displaying the deformable 3D virtual bone model on a graphical display, and scanning the bone of the patient using an ultrasound transducer. During scanning, a plurality of data points are recorded, where each data point corresponds to a bone surface point on the bone, and the plurality of bone surface points are applied to the deformable 3D virtual bone model graphically displayed.
The method conforms the deformable 3D virtual bone model to the plurality of bone surface points to generate a 3D virtual patient-specific bone model of the bone, and displays the 3D virtual patient-specific bone model of the bone on the graphical display. A statistical atlas-based deformable model is used, and patient demographic attributes such as gender and ethnicity can be used in selecting the deformable 3D virtual bone model.
The invention also provides a method for generating a 3D, patient-specific joint model by using a first deformable 3D virtual bone model corresponding to a first bone of a patient joint and a second deformable 3D virtual bone model corresponding to a second bone of the patient joint. Each bone is scanned using the ultrasound transducer to record bone surface data points, and each virtual bone model is conformed to the corresponding bone surface points to generate 3D virtual patient-specific bone models of both bones.
Claims Coverage
The partial claims provided include two independent claims. Across these, the coverage centers on selecting and conforming deformable 3D virtual bone models to ultrasound-recorded bone surface points, with joint-level extension to first and second bones.
Conforming an atlas-based deformable 3D virtual bone model to ultrasound-derived bone surface points
Selecting a deformable 3D virtual bone model corresponding to a bone of a patient, displaying it on a graphical display, scanning the bone using an ultrasound transducer, recording a plurality of data points where each corresponds to a bone surface point, applying the bone surface points to the displayed deformable 3D virtual bone model, and conforming the deformable 3D virtual bone model to the bone surface points to generate and display a 3D virtual patient-specific bone model.
Generating a patient-specific joint model by conforming first and second deformable virtual bone models
Selecting a first deformable 3D virtual bone model for a first bone of a patient joint and a second deformable 3D virtual bone model for a second bone, displaying each on a graphical display, scanning each bone using an ultrasound transducer to record corresponding pluralities of data points and bone surface points, applying each plurality of bone surface points to its displayed deformable 3D virtual bone model, and conforming each deformable virtual bone model to generate 3D virtual patient-specific bone models of both bones.
Taken together, the independent claim set covers conforming deformable 3D virtual bone models to ultrasound-based bone surface data points to generate patient-specific 3D bone models, and extending the same approach to a joint model using first and second bones with corresponding deformable virtual bone models.
Stated Advantages
Documented Applications
Not explicitly described in patent.
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