Colonic diverticulosis is one of the most common causes of lower gastrointestinal bleeding. Endoscopy is not only a useful diagnostic tool for localizing the bleeding site, but also a therapeutic modality for its mana...Colonic diverticulosis is one of the most common causes of lower gastrointestinal bleeding. Endoscopy is not only a useful diagnostic tool for localizing the bleeding site, but also a therapeutic modality for its management. To date, haemostatic methods have included adrenaline injection, mechanical clipping, thermal and electrical coagulation or combinations of them. The results of all published data are herein reviewed.展开更多
Angiolipoma, a common benign tumor mostly seen in the subcutaneous tissue, is a rare pathological condition in the gastrointestinal tract that is usually diagnosed postoperatively. In this case report, an angiolipoma ...Angiolipoma, a common benign tumor mostly seen in the subcutaneous tissue, is a rare pathological condition in the gastrointestinal tract that is usually diagnosed postoperatively. In this case report, an angiolipoma was diagnosed preoperatively by imaging （including CT scans, abdominal echo, barium enema, and colonoscopy）. This pathology was confirmed postoperatively. Computed tomography scan, abdominal echo, and barium enema images were presented.展开更多
This article is a general review of the evolvement of HIV/AIDS-related public policies in China since 1980’s. It tracks the important laws, regulations and other governmental documents in regard to HIV/AIDS preventio...This article is a general review of the evolvement of HIV/AIDS-related public policies in China since 1980’s. It tracks the important laws, regulations and other governmental documents in regard to HIV/AIDS prevention mainly at central level.展开更多
Objective: To design and test the accuracy and efficiency of our lung segmentation algorithm on thoracic CT image in computer-aided diagnostic (CAD) system, especially on the segmentation between left and right lungs....Objective: To design and test the accuracy and efficiency of our lung segmentation algorithm on thoracic CT image in computer-aided diagnostic (CAD) system, especially on the segmentation between left and right lungs. Methods: We put forward the base frame of our lung segmentation firstly. Then, using optimal thresholding and mathematical morphologic methods, we acquired the rough image of lung segmentation. Finally, we presented a fast self-fit segmentation refinement algorithm, adapting to the unsuccessful left-right lung segmentation of thredsholding. Then our algorithm was used to CT scan images of 30 patients and the results were compared with those made by experts. Results: Experiments on clinical 2-D pulmonary images showed the results of our algorithm were very close to the expert’s manual outlines, and it was very effective for the separation of left and right lungs with a successful segmentation ratio 94.8%. Conclusion: It is a practicable fast lung segmentation algorithm for CAD system on thoracic CT image.展开更多
A case with intracranial glioma after the surgery metastasizing to the spine was described. A 28-year-old female patient who underwent surgery and radiation therapy for glioma in the left frontal lobe and was diagnose...A case with intracranial glioma after the surgery metastasizing to the spine was described. A 28-year-old female patient who underwent surgery and radiation therapy for glioma in the left frontal lobe and was diagnosed as having extracranial metastasis to L2–L4 vertebral body by MRI, PET-CT and pathological examination. The clinical, imaging and pathologic features of the case are described and discussed.展开更多
文摘Colonic diverticulosis is one of the most common causes of lower gastrointestinal bleeding. Endoscopy is not only a useful diagnostic tool for localizing the bleeding site, but also a therapeutic modality for its management. To date, haemostatic methods have included adrenaline injection, mechanical clipping, thermal and electrical coagulation or combinations of them. The results of all published data are herein reviewed.
文摘Angiolipoma, a common benign tumor mostly seen in the subcutaneous tissue, is a rare pathological condition in the gastrointestinal tract that is usually diagnosed postoperatively. In this case report, an angiolipoma was diagnosed preoperatively by imaging （including CT scans, abdominal echo, barium enema, and colonoscopy）. This pathology was confirmed postoperatively. Computed tomography scan, abdominal echo, and barium enema images were presented.
文摘This article is a general review of the evolvement of HIV/AIDS-related public policies in China since 1980’s. It tracks the important laws, regulations and other governmental documents in regard to HIV/AIDS prevention mainly at central level.
基金the National Key Basic Research and Development Plan of China ("973" Projects, 2003CB716104)the Key Program of the National Natural Science Foundation of China (30730036)+1 种基金the Sci & Tech Planning Program of Guangdong Province (2007B010400058)the Sci & Tech Project Foundation of Guangzhou City (2007Z3-E0031)
文摘Objective: To design and test the accuracy and efficiency of our lung segmentation algorithm on thoracic CT image in computer-aided diagnostic (CAD) system, especially on the segmentation between left and right lungs. Methods: We put forward the base frame of our lung segmentation firstly. Then, using optimal thresholding and mathematical morphologic methods, we acquired the rough image of lung segmentation. Finally, we presented a fast self-fit segmentation refinement algorithm, adapting to the unsuccessful left-right lung segmentation of thredsholding. Then our algorithm was used to CT scan images of 30 patients and the results were compared with those made by experts. Results: Experiments on clinical 2-D pulmonary images showed the results of our algorithm were very close to the expert’s manual outlines, and it was very effective for the separation of left and right lungs with a successful segmentation ratio 94.8%. Conclusion: It is a practicable fast lung segmentation algorithm for CAD system on thoracic CT image.
文摘A case with intracranial glioma after the surgery metastasizing to the spine was described. A 28-year-old female patient who underwent surgery and radiation therapy for glioma in the left frontal lobe and was diagnosed as having extracranial metastasis to L2–L4 vertebral body by MRI, PET-CT and pathological examination. The clinical, imaging and pathologic features of the case are described and discussed.
