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前列腺MRI:在与前列腺切除术Gleason分级的相关性中,1.5 T MRI DWI优于经直肠超声引导的在外周带肿瘤中行活组织检查

国际医学放射学杂志 2012年第2期 203-204页

作者： L.K.Bittencourt J.O.Barentsz de L.C.D.Miranda E.L.Gasparetto 李秋云 cdpi clinics-abdominal and pelvic imaging Rio de Janeiro Federal UniversityAv.Das Americas4666sl 325centro medico22640102 Rio de JaneiroRJBrazil

目的研究与经超声引导的活组织检查所得Gleason分级(bGG)相比较,表观扩散系数(ADC)在预测前列腺切除术的Gleason分级(pGG)和Gleason评分(GS)的有效性。方法将经活检证实的24例前列腺癌病人纳入研究,应

关键词： MRI 前列腺癌扩散加权MRI 活组织检查生物学标记

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Magnetic resonance imaging in assessment of stress urinary incontinence in women: Parameters differentiating urethral hypermobility and intrinsic sphincter deficiency

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World Journal of Radiology 2015年第11期7卷 394-404页

作者： Katarzyna Jadwiga Macura Richard Eugene Thompson David Alan Bluemke Rene Genadry The Russell H. Morgan Department of Radiology and Radiological Science Johns Hopkins University Johns Hopkins Biostatistics Center National Institutes of Health Clinical Center University of Iowa Hospitals and clinics

AIM: To define the magnetic resonance imaging(MRI) parameters differentiating urethral hypermobility(UH) and intrinsic sphincter deficiency(ISD) in women with stress urinary incontinence(SUI).METHODS: The static and dynamic MR images of 21 patients with SUI were correlated to urodynamic(UD) findings and compared to those of 10 continent controls. For the assessment of the urethra and integrity of the urethral support structures, we applied the highresolution endocavitary MRI, such as intraurethral MRI, endovaginal or endorectal MRI. For the functional imaging of the urethral support, we performed dynamic MRI with the pelvic phased array coil. We assessed the following MRI parameters in both the patient and thevolunteer groups:(1) urethral angle;(2) bladder neck descent;(3) status of the periurethral ligaments,(4) vaginal shape;(5) urethral sphincter integrity, length and muscle thickness at mid urethra;(6) bladder neck funneling;(7) status of the puborectalis muscle;(8) pubo-vaginal distance. UDs parameters were assessed in the patient study group as follows:(1) urethral mobility angle on Q-tip test;(2) Valsalva leak point pressure(VLPP) measured at 250 cc bladder volume; and(3) maximum urethral closure pressure(MUCP). The UH type of SUI was defined with the Q-tip test angle over 30 degrees, and VLPP pressure over 60 cm H2 O. The ISD incontinence was defined with MUCP pressure below 20 cm H2 O, and VLPP pressure less or equal to 60 cm H2 O. We considered the associations between the MRI and clinical data and UDs using a variety of statistical tools to include linear regression, multivariate logistic regression and receiver operating characteristic(ROC) analysis. All statistical analyses were performed using STATA version 9.0(Stata Corp LP, College Station, TX).RESULTS: In the incontinent group, 52% have history of vaginal delivery trauma as compared to none in control group(P < 0.001). There was no difference between the continent volunteers and incontinent patients

关键词： Magnetic resonance imaging Stress urinary incontin

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口服低衰减胃肠道造影剂在腹盆部CT中的应用

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世界核心医学期刊文摘（胃肠病学分册） 2006年第4期2卷 6-6页

作者： Hebert J.J Taylor A.J Winter T.C. 赵双 Department of Radiology University of Wisconsin Hospital and Clinics 600 Highland Avenue Madison WI 53792-3252 United States

Background: We designed and evaluated a low-attenuation oral contrast agent for abdominal-pelvic computed tomography (CT). Methods: In vitro studies, were performed initially to evaluate the imaging characteristics of multiple solutions. These studies resulted in two solutions being compared with the presently accepted oral CT agents of dilute iodinated contrast and water. Ninety-eight consec utive subjects already scheduled for routine outpatient abdominal-pelvic CT were enrolled. Subjects were randomized to water (n = 30), fiber solution (n = 32), polyethylene glycol (PEG; n = 11), or dilute iodinated solution (DI; n = 25). Examinations were then evaluated for gastric distention, small bowel distention, small bowel wall visualization, and colonic transit. A questionnaire was given to the study subjects for feedback concerning taste and potential side effects from these agents. Results: PEG tended to provide better bowel distention, wall visualization, and colonic transit compared with water, fiber solution, and DI. Areas of statistical significance included: (1) average bowel diameter in the left upper quadrant for water was 17.50 mm, whereas that for PEG was 21.88 mm (p imaging characteristics related to bowel wall visualization, luminal distention, and colonic transit that make it an effective oral agent for abdominal pelvic CT examination.

关键词：造影剂 CT 盆部肠管扩张小肠壁成像特征碘溶液成像特点不良反应问卷调查

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