نتایج جستجو برای: diagnostic techniques and procedures

تعداد نتایج: 16908981  

Journal: :iranian journal of radiology 0
esra yazar pulmonary medicine department, yedikule chest disease education and training hospital, yedikule, i̇stanbul, turkey; pulmonary medicine department, yedikule chest disease education and training hospital, yedikule, turkey +90-5057781059, [email protected] funda seçik pulmonary medicine department, yedikule chest disease education and training hospital, yedikule, i̇stanbul, turkey pınar yıldız pulmonary medicine department, yedikule chest disease education and training hospital, yedikule, i̇stanbul, turkey

conclusion this study demonstrated that repeating the tfna procedure in pulmonary lesions improves the diagnostic yield without an increase in the rate of pneumothorax. objectives we aimed to investigate whether repeating ct-guided transthoracic fine needle aspiration (tfna) increases diagnostic yield and complication rate. patients and methods patients underwent tfna and the final diagnoses ac...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this study examined the effect of prior knowledge and vocabulary teaching on iranian efl learners listening comprehension. the current study has two purposes: one is to investigate the effect of background knowledge on the second language listening comprehension of iranian intermediates and the other is to determine whether second language is facilitated by the introduction of unknown vocabularies in the form of prelistening activities. to conduct the study different instruments such as listening proficiency test and four listening tests such as pre and posttests were used and various statistical processes and techniques including paired-sample t-test, and analysis of variance (anova) were used. the findings of this study supported all three hypotheses tested. differences were found between the means of preteaching vocabulary variable, the background knowledge activation variable, and mean difference between these two strategies variable. subjects scored higher when the unknown words were taught in advance. likewise, subjects scored higher when they were asked some relevant questions about the topic than on those without them. there was, in addition, a significant difference between the means of preteaching vocabulary strategy and background knowledge activation strategy. in fact, preteaching vocabulary had a better effect in enhancing the students’ listening comprehension, in comparison to background knowledge activation strategy.

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1390

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...

Journal: :the journal of tehran university heart center 0
maryam esmaeilzadeh echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. mohammadtaghi salehi-omran roohani hospital, babol university of medical sciences, babol, iran. majid maleki echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. majid haghjoo echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. feridoun noohi echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran. zahra ojaghi-haghighi echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, iran.

background: noninvasive techniques for the localization of the accessory pathways (aps) might help guide mapping procedures and ablation techniques. we sought to examine the diagnostic accuracy of strain imaging for the localization of the aps in wolff-parkinson-white syndrome. methods: w e prospectively studied 25 patients (mean age = 32 ± 17 years, 58.3% men) with evidence of pre-excitation o...

Journal: :Middle East journal of anaesthesiology 2013
Lakshman Gollapalli Peter Papapetrou Deepak Gupta Samir F Fuleihan

Postoperative alopecia is an uncommon complication and its outcome is aesthetically drastic. Although its mechanism has not been clearly elucidated, a proposed risk factor is steep Trendelenburg positioning (30-40 degrees) that is frequently used during robotic gynecologic surgeries. We report a case of postoperative alopecia in 53-year-old female patient who had undergone robotic-assisted lapa...

Journal: :reports of biochemistry and molecular biology 0
fatemeh keyfi immunobiochemistry lab, immunology research center, school of medicine, mashhad university of medical sciences, mashhad, iran - pardis clinical and genetic laboratory, mashhad, iran saeed talebi department of medical genetics, faculty of medicine, tehran university of medical sciences, tehran, iran abdol-reza varasteh tel: +98 51-38 44 20 16; fax: +98 51- 3845 22 36

methylmalonic acidemia (mma) is usually caused by a deficiency of the enzyme methylmalonyl-coa mutase (mcm), a defect in the transport or synthesis of its cofactor, adenosyl-cobalamin (cbla, cblb, cblc, cblf, cbld, and cblx), or deficiency of the enzyme methylmalonyl-coa epimerase. a comprehensive diagnostic approach involves investigations of metabolites with tandem mass spectrometry, organic ...

Journal: :Salud publica de Mexico 2015
David Contreras-Loya Octavio Gómez-Dantés Esteban Puentes Francisco Garrido-Latorre Manuel Castro-Tinoco Germán Fajardo-Dolci

OBJECTIVE A retrospective evaluation of waiting times for elective procedures was conducted in a sample of Mexican public hospitals from the following institutions: the Mexican Institute for Social Security (IMSS), the Institute for Social Security and Social Services for Civil Servants (ISSSTE) and the Ministry of Health (MoH). Our aim was to describe current waiting times and identify opportu...

Journal: :PLoS Medicine 2009
Zeno Bisoffi Federico Gobbi Andrea Angheben Jef Van den Ende

In recent years malaria treatment policies have shifted in most African countries to artemisinin-based combination therapies (ACT), which are highly effective but also much more expensive than previous regimens [1]. In order to avoid overprescription of ACT, new guidelines from the World Health Organization recommend that a laboratory test should be performed before treating [2]. The widespread...

Journal: :Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia 2006
Hiroaki Nomori Kazunori Iwatani Hironori Kobayashi Atsushi Mori Shouichi Yoshioka

To reduce or omit a mediastinal lymph node dissection in the patients with clinical stage I non-small cell lung cancer (NSCLC), several authors examined the prevalence of metastatic sites of lymph nodes. Because lymphatic drainage usually heads for the upper mediastinum in upper lobe cancer and for the lower mediastinum in lower lobe cancer, upper and lower mediastinal lymph node dissection cou...

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