Surgical Planning Laboratory - Brigham & Women's Hospital - Boston, Massachusetts USA - a teaching affiliate of Harvard Medical School

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Figure 2: Three Views of Segmented Colon and Flattened Representation.
Figure 2: Three Views of Segmented Colon and Flattened Representation.
Figure 1: A, Coronal slice (1.5 mm) through the temporal lobe of a healthy control subject. The regions of interest for the structures are outlined: the gray matter of Heschl gyrus (HG) is red on subject left and green on subject right. The gray matter of planum temporale (PT) is labeled yellow on subject left and blue on subject right. B, Top-down view of the 3-dimensional reconstruction of HG and PT placed on top of an axial magnetic resonance imaging slice. Anterior is top. The HG is red on subject left and green on subject right, and PT is blue on subject left and yellow on subject right. C, Three-dimensional reconstruction of the left and right regions of interest, color coded as in section B but from a slightly different angle of rotation from that in section B. Note the tubular structure of the gray matter of the superior temporal gyrus, most clearly seen anteriorly, where gray codes non-HG, non-PT portions of superior temporal gyrus. D, Three-dimensional reconstructions viewed from a different angle from that in section C (D1 is subject right and D2 is subject left).
Figure 1: A, Coronal slice (1.5 mm) through the temporal lobe of a healthy control subject. The regions of interest for the structures are outlined: the gray matter of Heschl gyrus (HG) is red on subject left and green on subject right. The gray matter of planum temporale (PT) is labeled yellow on subject left and blue on subject right. B, Top-down view of the 3-dimensional reconstruction of HG and PT placed on top of an axial magnetic resonance imaging slice. Anterior is top. The HG is red on subject left and green on subject right, and PT is blue on subject left and yellow on subject right. C, Three-dimensional reconstruction of the left and right regions of interest, color coded as in section B but from a slightly different angle of rotation from that in section B. Note the tubular structure of the gray matter of the superior temporal gyrus, most clearly seen anteriorly, where gray codes non-HG, non-PT portions of superior temporal gyrus. D, Three-dimensional reconstructions viewed from a different angle from that in section C (D1 is subject right and D2 is subject left).
Figure 1: Mid-gland axial image (a) used for magnetic-resonance-guided prostate brachytherapy implant. The peripheral zone is the defined clinical target volume (CTV) (b).
Figure 1: Mid-gland axial image (a) used for magnetic-resonance-guided prostate brachytherapy implant. The peripheral zone is the defined clinical target volume (CTV) (b).
Figure 13: Adaptive filtering of CT data through the head. The middle row shows thresholding of the original data with two different threshold. The lower row shows the effect of thresholding the adaptively filtered data.
Figure 13: Adaptive filtering of CT data through the head. The middle row shows thresholding of the original data with two different threshold. The lower row shows the effect of thresholding the adaptively filtered data.
Figure 1: Axial T2-weighted MR image (A) and dorsal lithotomy (B) and sagittal (C) displays of the 3D model of aggressive angiomyxoma of the pelvic floor.
Figure 1: Axial T2-weighted MR image (A) and dorsal lithotomy (B) and sagittal (C) displays of the 3D model of aggressive angiomyxoma of the pelvic floor.
Figure 11: Four steps in the segmentation of two different corpora callosa. The last image in each case shows the final segmentation in red. The cyan contour is the standard evolution without the shape influence.
Figure 11: Four steps in the segmentation of two different corpora callosa. The last image in each case shows the final segmentation in red. The cyan contour is the standard evolution without the shape influence.
Figure 3: Top:One example of each of three training sets of random ellipses under different imaging conditions.
Figure 3: Top:One example of each of three training sets of random ellipses under different imaging conditions.
Figure 3: Mean images during the congealing process. (a) The initial mean image for the set of zeroes. The blurriness is due to the misalignment of the images. (b) The initial mean image for the set of twos. (c) The final mean image for the set of zeroes. The coherence of the aligned images is indicated by the increased sharpness of the image.(d) The final mean image for the set of twos.
Figure 3: Mean images during the congealing process. (a) The initial mean image for the set of zeroes. The blurriness is due to the misalignment of the images. (b) The initial mean image for the set of twos. (c) The final mean image for the set of zeroes. The coherence of the aligned images is indicated by the increased sharpness of the image.(d) The final mean image for the set of twos.
Figure 1: 73 years old male with history of bladder cancer and hematuria. A. Axial CT image shows polypoid mass arising from the anterior surface of bladder wall (arrows). Contrast enhanced urine (*) pools adjacent to the catheter. B. Color mapped virtual endoscopy view of the same bladder. Superior-inferior view showing the catheter with balloon, the ureters (*) and the green to blue color mapped masses.
Figure 1: 73 years old male with history of bladder cancer and hematuria. A. Axial CT image shows polypoid mass arising from the anterior surface of bladder wall (arrows). Contrast enhanced urine (*) pools adjacent to the catheter. B. Color mapped virtual endoscopy view of the same bladder. Superior-inferior view showing the catheter with balloon, the ureters (*) and the green to blue color mapped masses.
Figure 7: Surface rendering of skin and active muscle after flexing two fingers only, and then a second experiment involving flexing all the fingers.
Figure 7: Surface rendering of skin and active muscle after flexing two fingers only, and then a second experiment involving flexing all the fingers.
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