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排序方式: 共有386条查询结果,搜索用时 15 毫秒
61.
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A simple, low-cost, automatic aspiration system that makes use of vacuum test tubes designed for the drawing of venous blood has been used for real-time ultrasound (US)-guided fine-needle aspiration biopsy of 13 cysts (breast), an abscess (liver), and five solid (breast, liver, thyroid) masses. Because it allows the operator to perform aspiration with one hand while holding the real-time US transducer with the other, and because creation of the suction is associated with no significant displacement of the needle, this approach has allowed sampling of lesions less than 1 cm in diameter. No complications have occurred. 相似文献
63.
Intraluminal calcifications in the small bowel of newborn infants with total colonic aganglionosis 总被引:2,自引:0,他引:2
Intraluminal calcifications were found in the small bowel of 4 newborns with total colonic aganglionosis. Abdominal radiography demonstrated circular aggregations of small punctate calcific densities in the right lower quadrant and evidence of bowel obstruction. There was a microcolon in each case. The calcifications, which resemble those seen in small intestinal atresia and stenosis, are probably related to fetal intestinal stasis, and may be differentiated from those due to meconium peritonitis. 相似文献
64.
Preliminary experimental results in humans and animals with a superconducting, whole-body, nuclear magnetic resonance scanner 总被引:3,自引:0,他引:3
65.
Twenty-five surgically confirmed soft-tissue lesions of the hand were examined prospectively by real-time ultrasound. Use of sonography enabled a reliable diagnosis of the cystic or solid nature of soft-tissue lesions, an accurate estimation of the volume, and precise three-dimensional localization of the abnormality. Sonography also facilitated the location of foreign bodies. Assessment of anatomic relationships of these lesions to tendons and surrounding structures by real-time sonography during palpation, flexion, and/or extension also aided in the surgical approach. 相似文献
66.
Magnetic resonance imaging of the brainstem: normal structure and basic functional anatomy 总被引:2,自引:0,他引:2
Flannigan BD; Bradley WG Jr; Mazziotta JC; Rauschning W; Bentson JR; Lufkin RB; Hieshima GB 《Radiology》1985,154(2):375-383
Normal structure and basic functional anatomy of the brainstem were studied using anatomic sections obtained with a cryomicrotome whole-organ sectioning technique. Major tracts and nuclei were identified and their function summarized. Magnetic resonance imaging of the brainstem was performed on 10 normal volunteers. By comparing these images with the corresponding anatomic sections, normal structures, including major tracts and nuclei, were identified. Knowledge of location and function of clinically important brainstem nuclei and tracts is necessary for optimal magnetic resonance image interpretation. 相似文献
67.
Raised intracellular iron has been identified as a potential aetiological factor in the development of several epithelial malignancies, including those of the gastrointestinal tract. The mechanism behind this increase is thought to include disorders of iron uptake and storage. Several iron chelators have been identified as potential anti-tumour agents, with much work undertaken to ascertain the exact mode of action. Despite this, there is little known about the role that these drugs play in the cellular iron metabolism of oesophageal cancer. Consequently, the present study looks to review the relationship of two clinically important iron-chelating agents, deferoxamine and deferasirox, on cellular iron uptake and storage in oesophageal squamous and adenocarcinoma. This provides important evidence for the debate about the role these agents have in the clinical management of such tumours.
Linked Article
This article is a commentary on Ford et al., pp. 1316–1328 of this issue. To view this paper visit http://dx.doi.org/10.1111/bph.12045 相似文献68.
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70.
Jialiang Guo MD Yali Zhou BD Meishuang Shang BD Xiaojuan Zhang MD Zhiyong Hou MD Weichong Dong MD Yingze Zhang BD 《Orthopaedic Surgery》2023,15(8):2144-2151