نتایج جستجو برای: positive predictive value ppv

تعداد نتایج: 1420372  

2015
Mohamed F. Ahmed

OBJECTIVE: 1) To correlate caloric results with sinusoidal and step-velocity rotary chair gain, phase, asymmetry and time constant values in all patients; 2) To evaluate sensitivity, specificity, positive predictive value and negative predictive value of both tests in patients with vestibular dizziness. STUDY DESIGN: Retrospective case review. SETTING: Academic tertiary care vestibular function...

Journal: :jundishapur journal of microbiology 0
mehdi vejdani department of parasitology and mycology, kermanshah university of medical sciences, kermanshah, ir iran; department of parasitology and mycology, kermanshah university of medical sciences, kermanshah, ir iran. tel: +98-8314274618-21, fax: +98-8314276477 rezaei mansour department of statistic and epidemiology, kermanshah university of medical sciences, kermanshah, ir iran yezdan hamzavi department of parasitology and mycology, kermanshah university of medical sciences, kermanshah, ir iran sina vejdani department of bioscience, university of calgary, alberta, canada naser nazeri department of parasitology and mycology, kermanshah university of medical sciences, kermanshah, ir iran ali michaeli department of parasitology and mycology, kermanshah university of medical sciences, kermanshah, ir iran

background cryptosporidium spp. is a widespread protozoan parasite involving humans and animals. objectives this study was carried out to evaluate the immunofluorescence assay (ifa) and pcr results for more accurate diagnosis of faecal specimens. patients and methods forty six faecal human specimens of cryptosporidium oocysts were examined by pcr and ifa in calgary, canada. in statistical analy...

Journal: :The American surgeon 2011
Marianne J Vandromme Russell L Griffin Gerald McGwin Jordan A Weinberg Loring W Rue Jeffrey D Kerby

Most retrospective studies evaluating fresh-frozen plasma:packed red blood cell ratios in trauma patients requiring massive transfusion (MT) are limited by survival bias. As prospective resource-intensive studies are being designed to better evaluate resuscitation strategies, it is imperative that patients with a high likelihood of MT are identified early. The objective of this study was to dev...

2011
Laury Masthoff Suzanne Pasmans Mirjam Knol Els van Hoffen Annebeth Flinterman Petra Kentie André Knulst Yolanda Meijer

Literature about the value of diagnostic tests for hazelnut allergy in children is scarce. For peanut allergy cutoff levels of specific IgE with a 95% positive predictive value (PPV) were published. To evaluate current diagnostics for hazelnut allergy in children, data of 151 children, who underwent a double-blind placebo-controlled food challenge (DBPCFC) for hazelnut were analyzed. The PPV or...

Journal: :medical journal of islamic republic of iran 0
shima nafarzadeh department of maxillofacial pathology, dentistry school, babol university of medical sciences, babol, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences) mohammad moshref department of maxillofacial pathology, dentistry school, shahid beheshti university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) fatemeh mashhadi abbass department of maxillofacial pathology, dental school, shahid beheshti university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) zohreh mohammad taheri shafa yahyaeian hospital shahid beheshti university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)سازمان های دیگر: shafa yahyaeian hospital arash poorsattar bejeh mir iran university of medical sciences, tehran, iran. dentistry student, central student research committee dentistry school, babol university of medical sciences, babol, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (babol university of medical sciences)

abstract   background: squamous cell carcinoma (scc) constitutes the main oral malignancy . parallel to better understanding of molecular and genetic patterns of tumor behavior, more precise correlation of tumor markers such as epidermal growth factor (egf) and laminin-5 are sought to estimate macroscopic and microscopic tumor status .   methods: we conducted a cross-sectional study collecting ...

Journal: :iranian journal of pathology 2006
maliheh khoddami maryam farzaneh manigeh garooni anaraki

background and objective: this study was undertaken to assess the ability of standard urinalysis (ua) and hemocytometer white blood cell (wbc) counts for the diagnosis of urinary tract infection (uti) in patients with urinary symptoms. materials and methods: a total of 600 patients with symptoms of urinary tract infection were enrolled in this prospective study. standard ua, hemocytometer wbc c...

Journal: :iranian red crescent medical journal 0
rokhsareh aghili endocrine research center (firouzgar), institute of endocrinology and metabolism (hemmat campus), tehran university of medical sciences, tehran, ir iran maryam kia department of internal medicine, tehran university of medical sciences, tehran, ir iran alipasha meysamie department of community and preventive medicine, faculty of medicine, tehran university of medical sciences, tehran, ir iran seyed mojtaba aghili department of emergency medicine, imam khomeini hospital, tehran university of medical sciences, tehran, ir iran omalbanin paknejad division of pulmonology, shariati hospital, tehran university of medical sciences, tehran, ir iran; division of pulmonology, shariati hospital, poc: 1411413137, tehran, ir iran. tel: +98-2184901; fax: +98-2188633039; email:

conclusions the fev1/fev6 ratio can be used as a valid surrogate for fev1/fvc in the diagnosis of airway obstruction, especially for screening purposes in high-risk populations for copd. moreover, fev6 is an acceptable alternative for fvc in detection of restrictive pattern. results this study shows that the current cut-off points used to detect obstruction and restriction can be replaced by fe...

Journal: :Annals of diagnostic pathology 2012
Priska Schneider Stephanie von Orelli Malgorzata Roos Cornelia Leo Daniel Fink Pius Wyss

The objective of this study is to assess the value of postcone endocervical curettage, after conization of cervical intraepithelial neoplasia or carcinoma as a predictive tool for residual lesions. This is a retrospective observational study. All data were obtained by the University Hospital of Zurich, Department of Gynaecology. One hundred fifty patients underwent hysterectomy within 12 months...

2014
D Parkinson SJ Johnson

Objectives:1-To determine the Positive Predictive Value(PPV) of ?glandularNeoplasia and borderline nuclear changes in glandularcells by comparing and correlating the cytology andhistological reports. 2Compare the Positive Predictive Value(PPV) to other recent studies inLiterature. Design: Retrospective review Method: Review of the cytology and histology reports via elect...

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