نتایج جستجو برای: positive predictive value
تعداد نتایج: 1418773 فیلتر نتایج به سال:
Introduction: Appendicitis is one of the most prevalent causes of abdominal pain requiring surgery. Diagnosis of appendicitis is one of the important challenges of surgeons in emergency care. Delay in the diagnosis of appendicitis is associated with an increase in disability and mortality. The timely and correct diagnosis of appendicitis is necessary to reduce the complications of appendicitis ...
Background: Molecular detection has recently been proposed by nucleic acid amplification, known as polymerase chain reaction (PCR). The aim of this study was to compare the diagnostic method of smear and polymerase chain reaction with culture in terms of sensitivity, specificity, positive and negative predictive value in the diagnosis of pulmonary tuberculosis. Methods: In this cross-sectional...
background coronary artery disease is the single most important cause of mortality and morbidity in diabetic patients. electrocardiographic stress test is a non-invasive modality to screen significant coronary involvement in minimally symptomatic diabetics. objectives we investigated the positive predictive value (ppv) of this test in comparison with coronary angiography. materials and methods ...
Background and Objectives: Pneumothorax is a life-threatening complication and the most common cause of which is trauma. Early diagnosis and treatment of Pneumothorax are very important. The aim of this study was to compare the diagnostic values of four-point and double-point ultrasound versus CT scan in determining pneumothorax in Rasul-Akram and Hafte-Tir Hospitals during the years 2015 - 201...
background & aim: preeclampsi which is a common and important disorder in pregnancy is one of the three leading causes of maternal mortality. it is worthy to find out an appropriate screening test for it. this study aimed to assess serum hematocrit level as a screening test for preeclampsia. methods & materials: using a randomized stratification, 660 women who were in the 24-28 weeks of gestati...
Background: Diagnosis of anemia is challenging in resource-poor settings due to inadequate laboratory resources. This study assessed the validity of the Tallquist haemoglobinometer in assessing anemia among pregnant women in Osogbo, Southwestern Nigeria. Methods: This was a cross - sectional study, in which 200 pregnant women of reproductive age were selected using multist...
background and objectives: thyroid gland because of its superficial location is amenable to direct physical examination. clinical assessment of thyroid lesions by means of physical examination, thyroid scans and ultrasonography is not completely reliable. fine needle aspiration cytology (fnac) is the most cost-effective, safe and an initial diagnostic test in the pre-operative evaluation of thy...
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