نتایج جستجو برای: diagnostic yield

تعداد نتایج: 480576  

Journal: :Journal of thoracic disease 2016
Lonny B Yarmus Sixto Arias David Feller-Kopman Roy Semaan Ko Pen Wang Bernice Frimpong Karen Oakjones Burgess Richard Thompson Alex Chen Ricardo Ortiz Hans J Lee

BACKGROUND Pulmonary nodules remain a diagnostic challenge for physicians. Minimally invasive biopsy methods include bronchoscopy and CT guided transthoracic needle aspiration (TTNA). A novel electromagnetic guidance transthoracic needle aspiration (ETTNA) procedure which can be combined with navigational bronchoscopy (NB) and endobronchial ultrasound (EBUS) in a single setting has become avail...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی 1389

با پیشرفت تکنولوژی و کاهش ابعاد ترانزیستور، تلرانس پارامترهای ساخت مدارات الکترونیک افزایش یافته و باعث کاهش ضریب yield می شود. در طراحی مدارات الکترونیک، طراح عموما مقادیر نامی را برای دست یابی به عملکرد مطلوب استخراج می کند، در حالی که، در عمل یک ناحیه تلرانس، به دلیل فرآیند های تصادفی حین فرآیند های ساخت، وجود دارد که بایستی در طراحی لحاظ گردد. الگوریتم های بهینه سازی طراحی تلرانس، ناحیه تلر...

2016
Jing-Jing Ma Ying Wang Xiao-Min Xu Jie-Wen Su Wen-Yu Jiang Jian-Xia Jiang Lin Lin Dao-Quan Zhang Jing Ding Li Chen Ting Jiang Ying-Hong Xu Gui Tao Hong-Jie Zhang

AIM To evaluate diagnostic yields of capsule endoscopy (CE) and/or single-balloon enteroscopy (SBE) in patients with suspected small bowel diseases. METHODS We retrospectively analyzed 700 patients with suspected small bowel diseases from September 2010 to March 2016. CE, SBE, or SBE with prior CE was performed in 401, 353, and 47 patients, respectively. Data from clinical and endoscopy recor...

Journal: :British journal of neurosurgery 2013
Georgios Tsermoulas Nitin Mukerji Amlan Jyoti Borah Patrick Mitchell Nicholas Ross

INTRODUCTION We analyse the factors that are associated with the diagnostic yield of needle brain biopsy. MATERIAL AND METHODS We present a retrospective series of 124 consecutive biopsies in a 30-month period. Patients' demographics (age, gender), lesion topography (side, location, depth), lesion characteristics (histology, volume, radiological enhancement), type of biopsy procedure (freehan...

PARVIZ VAHEDI,

The technique of transbronchial lung biopsy (TBLB) has expanded the diagnostic yield of bronchoscopy . In this article we are presenting 54 patients with diffuse pulmonary parenchymal involvement who underwent this procedure during six years between June 1980 and December 1989. The diagnostic yield of this technique in diffuse pulmonary parenchymal disease is great and was 66 percent exclu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...

Journal: :medical journal of islamic republic of iran 0
parviz vahedi from the department of internal medicine. imam reza medical center, mashhad university of medical sciences, mashhad, islamic republic of iran.

the technique of transbronchial lung biopsy (tblb) has expanded the diagnostic yield of bronchoscopy . in this article we are presenting 54 patients with diffuse pulmonary parenchymal involvement who underwent this procedure during six years between june 1980 and december 1989. the diagnostic yield of this technique in diffuse pulmonary parenchymal disease is great and was 66 percent excluding ...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2014
Amir Suleman Munawar Zaman Muhammad Yasin Abdur-Rab Khan

BACKGROUND Priority of all bronchoscopies has been diagnostic yield and various techniques have been introduced to improve it. Transbronchial biopsy (TBB) and transbronchial aspirates (TBA) also play an important role in improving diagnostic yield. The aim of the study was to determine the diagnostic yield of biopsies via fibre optic bronchoscopy (FOB) in 108 cases in which it was indicated. ...

2016
David E. Leaf Anand Srivastava Xiaoxi Zeng Gearoid M. McMahon Heather E. Croy Mallika L. Mendu Allen Kachalia Sushrut S. Waikar

BACKGROUND The patterns, performance characteristics, and yield of diagnostic tests ordered for the evaluation of acute kidney injury (AKI) have not been rigorously evaluated. METHODS We characterized the frequency of AKI diagnostic testing for urine, blood, radiology, and pathology tests in all adult inpatients who were admitted with or developed AKI (N = 4903 patients with 5731 AKI episodes...

Journal: :The Canadian journal of cardiology 1999
C S Simpson A D Krahn G J Klein R Yee A C Skanes V Manda C Norris

OBJECTIVE To compare the cost effectiveness of a conventional diagnostic work-up with that of several different diagnostic cascades for the investigation of undifferentiated syncope. DESIGN A MEDLINE search established a weighted estimate of diagnostic yield for several diagnostic investigations. 'High-end' and 'low-end' cost estimates were calculated for these investigations based on figures...

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