The evaluation of the bone density from 2D and 3D medical images is an important task both in clinical and research fields. Clinically it is considered one of the parameters of prediction of osteoporosis and therefore bone fracture risk1. It is commonly measured using the Dual Energy Xray ...
A method for the analysis of bone mineral density and/or bone structure from x-ray images using calibration phantoms which act as references in order to determine bone structure from an x-ray image. Regions of anatomical interest (ROI) in the image are identified. The method comprises: obtaini...
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OCT OCT is an imaging technology that uses the interference between an investigated object and a local reference signal to create high-resolution cross-sectional images and 3D scans of the retina and anterior segment [19]. Figure3c shows a cross-sectional scan of OCT. It is a noninvasive tech...
a ct scanner takes superhigh-resolution x-rays of a bone, then combines those individual images into a three-dimensional structure. the results are incredibly detailed; a scan of a single segment of bone can run 30 gigs. majumdar's method is to churn through the data to identify patterns ...
A total of 27 pouch patients with inflammatory bowel diseases, who underwent pelvic MRI-DIXON and CT scan within one year, were included. Peripouch fat areas were measured at the middle height level of pouch (AreaM) and the highest level of pouch (AreaH)
In addition, we present tensor-based morphometry (TBM) to assess trabecular and cortical bone structural changes. The SPM techniques were evaluated based on scan-rescan HR-pQCT acquisitions with repositioning of the distal radius and distal tibia of 30 subjects. For VBM and surface-based SPM ...
As a proof-of-concept study, the off-the-shelf deep-learning model is first recruited to segment teeth and bone from CBCT images of Yorkshire pig mandibles, which is then superimposed onto the intraoral scan of the pig semi-automatically. To evaluate the accuracy of this methodology, the ...
The purpose of the study was to develop a deep learning network for estimating and constructing highly accurate 3D bone models directly from actual X-ray images and to verify its accuracy. The data used were 173 computed tomography (CT) images and 105 ac
To overcome the slow volumetric scan speed of three-photon imaging, axially-elongated Bessel-beam scanning has been used to achieve 5-Hz scan speeds in the mouse cortex (620–685 μm below the dura)50. Additionally, miniature, head-mounted microscopes incorporating implanted GRIN lenses have the...