Computed tomography showed a distended sigmoid colon that was looped in an inverted U (Panel A, arrows). The coronal view revealed dilated loops of colon with a central whirl sign (Panel B, arrow). The whirl results from the rotation of afferent and efferent bowel loops around the point of...
Animation of a smoker's lungs 00:13 Animation of a man's inflamed backbone 00:25 Colon polyps. Endoscope view of the colon (large intestine) showing inflammatory polyps in a patient with ulcerative colitis.. 00:25 Ulcerative colitis of the rectum and sigmoid colon, endoscopic view.. 00:11...
BCE uses the sigmoid activation function, which can account for both positive and negative sample losses. 𝐿𝐺𝐼𝑂𝑈LGIOU focuses on both overlapping and non-overlapping regions, which can solve the problem that the gap between non-overlapping frames cannot be evaluated. 𝑁𝑝𝑜𝑠...
Kvasir-SEG [45] is a dataset for pixel-level colon polyp segmentation, containing 1000 gastrointestinal polyp images and their corresponding masks, all annotated and verified by experienced gastroenterologists. Following the official dataset split, we selected 800 images for the training set, 100 image...
Download diagrams of organs of human gastrointestinal tract, normal anatomy anddigestive disorders from swallowing to anal problems: esophageal ring and cancer, heartburn, hiatus hernia, stomach ulcer, hepatitis and liver cirrhosis, colon pathology,...Also includes diagrams of surgery treatment, gastric...
Megacolon refers to cecal dilatation above the dimension of 12 cm and above 6.5 cm of the sigmoid colon, measured at the pelvic brim. Dilatation of the col... AE Bharucha,SF Phillips - 《Curr Treat Options Gastroenterol》 被引量: 104发表: 1999年 Combined trans-sphenoidal and simultaneous ...
Finally, we comparatively evaluate CNNs on 170 breast and colon cancer images with pathologist-annotated nuclei, finding that both cellular and intercellular regions contribute to CNN accuracy. These results demonstrate the power of CNNs not only for histopathological classification, but also for cross...
Unfortunately, the usage of the term “endoscopy” is neither consistent in common parlance nor in the literature. It is often used as synonym for gastro-intestinal endoscopy (of the digestive system), which mainly includescolonoscopyandgastroscopy(examination of the colon and stomach, respectively)....
The loss function is differentiable with respect toΘand the FCN regression model is trained with the standard gradient-based backpropagation [68]. Denoteaithe input of the last layer for training imagexi. The derivative of (2) with respect ifaican be written as (assuming the sigmoid activatio...
People at average risk for colorectal cancer (asymptomatic, age greater than or equal to years, no risk factors) are offered fecal occult blood testing each year and sigmoidoscopy every five years. In case of a positive fecal occult blood test, examination of the whole colon by colonoscopy ...