نتایج جستجو برای: sensitivity and specifity

تعداد نتایج: 16856502  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی عمران 1388

چکیده روش های متعددی برای برآورد رواناب حاصل از بارش در حوضه های آبریز وجود دارد. یکی از این روش ها استفاده از مدل های هیدرولوژیکی است. با استفاده از مدل های هیدرولوژیکی و شبیه سازی فرآیندهای هیدرولوژیکی می توان با صرف کمترین زمان و هزینه، رواناب و مولفه های دیگر چرخ? هیدرولوژیکی را برآورد کرد. از آنجا که در حوضه های آبریز اندازه گیری تمام کمیت های مورد نیاز برای تحلیل رواناب ممکن نیست، انتخاب...

2017
Lauri J. Lehto Aloma A. Albors Alejandra Sierra Laura Tolppanen Lynn E. Eberly Silvia Mangia Antti Nurmi Shalom Michaeli Olli Gröhn

In this work a new MRI modality entitled Relaxation Along a Fictitious Field in the rotating frame of rank 4 (RAFF4) was evaluated in its ability to detect lower myelin content in lysophosphatidyl choline (LPC)-induced demyelinating lesions. The lesions were induced in two areas of the rat brain with either uniform or complex fiber orientations, i.e., in the corpus callosum (cc) and dorsal tegm...

Journal: :acta medica iranica 0
ali mohammadzadeh department of radiology, rejaee cardiovascular research center, tehran university of medical sciences; tehran, iran. abbas arjmand shabestari department of radiology, modarres hospital, shahid beheshti university of medical sciences;advanced diagnostic and interventional research center(adir), tehran, iran. maryam mohammadzadeh department of radiology, guilan university of medical sciences, rasht, iran. mohammad ali mohammadzadeh department of vascular surgery, guilan university of medical sciences, rasht, iran. sakineh kadivar department of ophthalmology, guilan university of medical sciences, rasht, iran. vahid mohammadzadeh department of internal medicine, imam khomeini hospital, tehran university of medical sciences, tehran, iran.

the use of noninvasive assessment tools such as multi-slice ct coronary angiography (msct-ca-ca) is recently considered mainly because it offers safety, patient convenience, and faster performance. the aim of the present study was to determine the ability of msct-ca-ca for the detection of significant stenoses in the coronary arteries, in comparison to conventional invasive coronary angiography...

Journal: :iranian red crescent medical journal 0
hamid alavi majd department of biostatistics, school of paramedical sciences, shahid beheshti university of medical sciences, tehran, ir iran ahmad reza baghestani department of biostatistics, school of paramedical sciences, shahid beheshti university of medical sciences, tehran, ir iran; department of biostatistics, school of paramedical sciences, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2122707347, fax: +98-2122707347 nasrin broumandnia department of biostatistics, school of paramedical sciences, shahid beheshti university of medical sciences, tehran, ir iran nourossadat kariman research institute for reproductive health, faculty of nursing and midwifery, shahid beheshti university of medical sciences, tehran, ir iran nastaran safavi ardebili international branch of shahid beheshti university of medical sciences, tehran, ir iran elham sajjadi department of hematology, tarbiat modares university, tehran, ir iran ,

background identification of a normal range for biomarkers, based on pregnancy outcomes (caused by their high or low values) is of special importance in clinical studies. as some pregnancy outcomes can happen in both high and low levels of biomarkers, the receiver-operating characteristic (roc) curve is unsuitable for identifying these levels separately; rather, a statistical method is preferab...

Journal: :Hamostaseologie 2009
I Music M Novak B Acham-Roschitz W Muntean

AIM In children, screening for haemorrhagic disorders is further complicated by the fact that infants and young children with mild disease in many cases most likely will not have a significant history of easy bruising or bleeding making the efficacy of a questionnaire even more questionable. PATIENTS, METHODS We compared the questionnaires of a group of 88 children in whom a haemorrhagic diso...

Journal: :middle east journal of digestive diseases 0
azita ganji mohsen sadrneshin ali bahari abbas esmaeilzadeh kamran ghafarzadegan shafagh nikpour

background worldwide, the incidence of inflammatory bowel disease (ibd) is increasing. this study aims to evaluate the diagnostic value of two serological markers, atypical perinuclear anti-neutrophil cytoplasmic antibodies (atypical-p-anca) and anti-saccharomyces cerevisiae antibodies (asca), with the intent to determinetheir relationship to ulcerative colitis (uc) and crohn's disease (cd), in...

لعل بخش , کامران, موسوی , سیدعلی, چیت ساز , احمد,

Background and purpose: Cervical radiculopathy is one of the most common diseases that must be diagnosed early and properly to prevent its serious side effects. For this purpose different paraclinical methods such as MRI, X-ray, EMG, NCV and SSEP are used. Each of these methods has its limitations and some of them are expensive or invassive. The aim of this study was to compare the electrodia...

Journal: :Annals of Pakistan Institute of Medical Sciences 2022

Objective: To determine the diagnostic accuracy of color Doppler ultrasonography for diagnosing septocutaneous nature anterolateral thigh flap perforators taking peroperative findings as gold standard among patients undergoing soft tissue reconstruction. Methodology: A total number 100 reconstruction using antero-lateral at plastic surgery unit, Pak Italian Modern Burn Center, Multan and fulfil...

2010
Michele Romano Alberto Negrini

Background The coservative treatment based on exercises is the main therapeutic strategy widely used for patients affected by scoliosis not particularly important and as a supporting tool in case of prescription of brace. The specific exercises are furthermore means of treating scoliosis in adults, in order to reduce pain and to contrast the progression of the curves. According to SEAS approach...

2012
Hadi Sorkhi Haji-Ghorban Nooreddini Mehrangiz Amiri Soheil Osia Saeed Farhadi-Niakee

OBJECTIVE Urinary tract infection (UTI) is one of the most common causes of febrile pediatric diseases. Also, vesicoureteral reflux (VUR) is a significant risk factor for UTI. Voiding cystourethrography (VCUG) is the method of choice for evaluation of VUR. This study was done to predict VUR by DMSA scan (technetium 99 m-labeled dimercaptosuccinic acid) and ultrasonography (US). METHODS In a p...

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