多参数MR成像全肿瘤直方图分析三阴性乳腺癌与其他亚型的鉴别

正摘要目的利用多参数MR成像图谱和全肿瘤直方图分析三阴性(TN)乳腺癌与其他分子亚型鉴别的影像学生物标志。方法本回顾性研究包括134例浸润性导管癌病人。从     

乳腺良恶性病变的磁共振T2*W首过灌注成像与血管生成相关性研究

Objective： To study the diagnostic value of T2^＊-weighted first-pass perfusion imaging in breast tumors. Methods： We analyzed the magnetic resonance imaging （MRI） information along with the pathological and immunohistochemistry results. Magnetic resonance imaging was performed in 28 patients with breast tumor. The time to signal intensity curves were generated according to the T2^＊-weighted first-pass perfusion imaging. The curve＇s maximal signal intensity drop rate and maximal signal intensity decrease time were analyzed and compared with the pathological diagnoses after surgery. Results： Malignant breast lesions showed higher maximal signal intensity drop rate （44.69% ± 17.07 vs. 17.22% ±7.49, P 〈 0.001） than benign lesions, but there was no significant difference of maximal signal decrease time between those two lesions （23.94 s ± 4.92 vs. 20.02 s ± 6.83, P 〉 0.05）. Conclusion： The T2^＊-weighted first-pass perfusion imaging has enough sensitivity and specificity in breast tumor diagnosis.     

P17 Pharmacology in the integrated course ＂Basic Medical Sciences＂ in Zhejiang University School of Medicine

According to traditional teaching mode, the courses in preclinical medicine including pharmacology are separately run. This mode causes a series of disadvantages including loose connection between knowledge in different disciplines and weak ability to bridge basic preclinical knowledge and clinical practice. In order to overcome the disadvantages and promote the teaching efficiency, we constructed a new integrated course-Course of Basic Medical Sciences, which includes 6 traditional courses, anatomy, histology and embryology, physiology, pathology, pathophysiology and pharmacology. We integrated these courses based on the human organ systems and according to the principle-＂ From macro to micro, From morphological to functional, From normal to abnormal and From disease to drug therapy＂ and published the series of textbook in 2004. The contents of pharmacology are taught just after pathology and pathophysiology in every organ system. In comparison with the traditional teaching mode, teachers of pharmacology need not spend a lot of time to review preceding knowledge of anatomy and histology, physiology, pathophysiology and pathology. This is helpful in saving time and improving the teaching efficiency.     

口服去甲肾上腺素致胃粘膜广泛性坏死3例报告

口服去甲肾上腺素致胃粘膜广泛性坏死３例报告谢朝秀，谢明，何勇，李经身去甲肾上腺素稀释后口服是治疗上消化道出血常用的有效止血方法之一，但引起胃粘膜广泛性坏死，尚未见报导。我们遇到３例，现报告如下。病例介绍例１：男，７０岁，黑便６天，呕血２次，量约１００...     

AN EEG STUDY OF 120 EPILEPTIC FAMILIES

To study the epilepsy heredity, routine EEG tracings of 120 epileptic families and 57 normal control families were carried out. The results suggest that epilepsy shows an obvious tendency to be inherited.     

VACUOLE SIGN AND SMALL NODE SIGN IN EARLY PERIPHERAL LUNG CANCER PATHOLOGIC BASIS AND DIAGNOSTIC VALUE

Radiologic and pathologic mani;estations of 30 peripheral pulmonary masses around l.5-3 cm in dia- meter were compared to the pathologic basis of va- cuole sign and small node sign on tomogram. Stati stics of 100 conventional X-ray tomograms of peri- pheral pulmonary masses about l-3 cm in diameter suggested that the vacuole sign and small node sign, more common in early peripheral lung cancer than in tuberculoma, are valuable for differentiating early peripheral lung cancer from tuberculoma.     

高位右肝管狭窄和结石手术治疗的体会

高位右肝管狭窄和结石,因其显露困难,手术治疗效果仍不令人满意。我们近10年来,手术治疗高位右肝管狭窄和结石56例,随访观察42例,效果尚好。现将手术中的一些粗浅体会介绍如下。     

输胆空肠袢乳头形成抗肠液逆流67例报告

我院自1989年6月至1991年12月,对肝内外胆管结石并狭窄病人,行输胆空肠袢乳头形成胆肠内引流67例,均无逆流,现报告如下:临床资料输胆空肠袢长度10～15cm,平均12.2cm,乳头长1.8～2.0cm,平均1.93cm,乳头阻力0.9～1.2kPa,平均1.09kPa,乳头开口0.9～1.2cm,平均1.03cm,抗逆流阻力3.5kPa～3.95kPa,平均3.61kPa。同时行肝部分切除41例,肝内外胆管切开成形55例,胆总管下端缝闭或横断59例,胆肠侧侧吻合口直径5～9cm,平均6.2cm。     

Collagen-coated polylactide microspheres as chondrocyte microcarriers

Polylactide (PLA) microspheres were coated with collagen for cell culture and injectable cell carriers. Utilizing a method of emulsion-solvent evaporation, PLA microspheres with diameter ranging from 180 to 280 microm were prepared, followed with aminolysis in hexanediamine/n-propanol solution to introduce free amino groups on their surfaces. After the amino groups were transferred into aldehyde groups by a treatment of glutaraldehyde, collagen type I was covalently coupled via Schiff base formation between the aldehyde groups and the amino groups on collagen molecules. Meanwhile, physically entangled collagen molecules were retained following a grafting-coating protocol to yield microspheres coated with larger amount of collagen. Aminolysis resulted in weight loss of the microspheres following a linear relationship with the aminolysis time. The NH2 and collagen contents existed on the microsphere surface were quantitatively determined by ninhydrin and hydroproline (Hyp) analyses, respectively. Larger amount of collagen was immobilized on the microspheres with higher content of NH2. In vitro chondrocyte culture revealed that the cells could attach, proliferate and spread on these PLA microspheres, in particular on the ones having higher content of collagen. These results show that the collagen-coated PLA microspheres are promising candidate as cell microcarriers.