نتایج جستجو برای: نمای مورفولوژی mri
تعداد نتایج: 113702 فیلتر نتایج به سال:
MRI workers are occupationally exposed to static and time-varying gradient magnetic fields. While the 24-hour time-averaged exposure to static magnetic fields is about a few mT, the maximum static field strength can be as high as 500 mT during patient setup. Over the past several years, our laboratory has performed extensive experiments on the health effects of exposure of animal models and h...
introduction: in radiotherapy, methods of treatment planning are becoming increasingly more complicated. this requires verification of the doses delivered to increasingly smaller and more precise regions. radiotherapy techniques are continuously employing smaller and smaller field sizes to deliver tighter radiation doses with higher therapeutic ratios, generating interest among researchers to p...
a case of cervical ectopic pregnancy in a 37 years old woman with history of two previous cesarean sections and one dilatation/curettage. the case was the advanced cervical pregnancy reported in iran, which diagnosed in 12 week of gestation by mri and finally treated by hysterectomy.
conclusion high-resolution mr images of the wrist using 3d t2space, pd blade and t2 blade were superior to those using conventional sequences quantitatively. high-snr and cnr mr imaging with space and blade would be a promising method to diagnose wrist lesions. results snr of the cartilage, tfcc on 3d t2space and t1 fse was better than other sequences (p < 0.001). snr of the bone on pd blade wa...
how to cite this article: eslamiyeh h, ashrafzadeh f, akhondian j, beiraghi toosi m. homocystinuria: a rare disorder presenting as cerebral sinovenous thrombosis. iran j child neurol. spring 2015;9(2):53-57. abstract objective homocystinuria is an inborn error of amino acid metabolism caused by cystathionine beta-synthase deficiency that affects methionine metabolism. the clinical features are ...
how to cite this article: fallah r, fadavi n, behdad sh, fallah tafti m. efficacy of chloral hydrate-hydroxyzine and chloral hydrate-midazolam in pediatric magnetic resonance imaging sedation. iran j child neurol. 2014 spring 8(2):11-17. objective magnetic resonance imaging (mri) is a useful diagnostic tool for the evaluation of congenital or acquired brain lesions. but, in all of less than 8-y...
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زمینه و هدف : تعیین ارزش تشخیصی نشانگان بالینی عصبی به منظور تعیین توپوگرافی ضایعات سیستم اعصاب مرکزی می تواند در مواردی از انجام غیرضروری mri بیماران کاسته و هزینه انجام اقدامات تشخیصی را در مواردی کاهش دهد. این مطالعه به منظور تعیین ارزش تشخیصی معاینات بالینی در تعیین محل ضایعات تحت چادرینه ای بیماران مبتلا به نشانگان عروقی مغز انجام شد. روش بررسی : این مطالعه توصیفی روی 200 بیمار مبتلا به نش...
fat necrosis is a benign inflammatory process which can involve adipose tissue anywhere in the body. a previous history of trauma or surgery may or may not be present. information about the clinical and radiological appearance of this lesion is very important because it can mimic breast cancer. in this article, we review the features of fat necrosis in different imaging modalities including mam...
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