نتایج جستجو برای: mdct

تعداد نتایج: 2439  

2017
Da-wei Zhao Meng Tian Le-tian Zhang Tao Li Jie Bi Jia-ying He Ying-ying Zhang

Objective This study was performed to identify the correlation between contrast-enhanced ultrasound (CEUS) and contrast-enhanced multidetector computed tomography (CE-MDCT) as well as the correlation between serum liver enzyme concentrations and CE-MDCT in classification of the severity of blunt hepatic trauma using CE-MDCT as a reference standard. Materials and methods A blunt liver trauma mod...

Journal: :Global journal of health science 2015
Mohammad Davoodi Mohsen Kordi Mohammad Momen Gharibvand Maryam Haddadzadeh Shoushtari Hamid Borsi Mohammad Bahadoram

BACKGROUND Hemoptysis is the expectorating of blood from the tracheobronchial tree or pulmonary parenchyma. There is conflicting information about usefulness of radiography, MDCT, and bronchoscopy for investigating site and cause of the bleeding in patients with hemoptysis. The present study attempted to evaluated efficacy of these methods for identifying hemoptysis' cause and etiology on 40 pa...

Journal: :Journal of the American College of Cardiology 2006
Yoshinobu Onuma Kengo Tanabe Gaku Nakazawa Jiro Aoki Hiroyoshi Nakajima Kenji Ibukuro Kazuhiro Hara

OBJECTIVES We investigated the frequency of the noncardiac findings in cardiac imaging with multidetector computed tomography (MDCT). BACKGROUND Multidetector computed tomography is an accepted new tool to evaluate the heart. In cardiac MDCT scans, organs other than the heart are also irradiated, but usually not assessed. METHODS A total of 503 patients underwent cardiac imaging with 16- or...

2004
Afzel Noore

A new digital watermarking technique for images that are sensitive to blocking artifacts is presented. Experimental results show that the proposed MDCT based approach produces highly imperceptible watermarked images and is robust to attacks such as compression, noise, filtering and geometric transformations. The proposed MDCT watermarking technique is applied to fingerprints for ensuring securi...

Journal: :EURASIP J. Audio, Speech and Music Processing 2017
Yujie Dun Guizhong Liu Xingsong Hou

Signal frequency estimation is a problem of significance in many applications including audio signal processing. Compressed domain audio frequency estimators that directly use the modified discrete cosine transform (MDCT) coefficients are suitable for low-complexity audio applications. A new frequency estimation approach, which can obtain the estimated value from a simple combination of three M...

2012
Jong Gyu Kim Soo Hyang Lee

BACKGROUND During the planning of a thoracodorsal artery perforator (TDAP) free flap, preoperative multidetector-row computed tomographic (MDCT) angiography is valuable for predicting the locations of perforators. However, CT-based perforator mapping of the thoracodorsal artery is not easy because of its small diameter. Thus, we evaluated 1-mm-thick MDCT images in multiple planes to search for ...

2011
Fatemeh Gatreh-Samani Mohammad Kazem Tarzamni Elaheh Olad-Sahebmadarek Ali Dastranj Aimaz Afrough

BACKGROUND Adnexal cancers are in fifth place among the tumors with the highest mortality in the female population. The aim of the present study was to evaluate the accuracy of Multi-detector computed tomography (MDCT) on a 64-multislice CT scanner in the detection and differentiation of adnexal masses stages. METHODS During the present prospective study, 95 women with a primary diagnosis of ...

2015
GEHAN S. SEIFELDEIN

Objective: To determine the severity score of bronchiectasis using MDCT and pulmonary function tests and to relate the extent of MDCT score to pulmonary function tests. Patients and Methods: A prospective study was performed in Assuit University Hospitals from 2011 to 2013 and it included 50 patients underwent MDCT examination and pulmonary function. Two radiologists interpreted MDCT images acc...

Journal: :International endodontic journal 2012
S Khedmat N Rouhi N Drage N Shokouhinejad M H Nekoofar

AIM To compare the accuracy of digital radiography (DR), multidetector computed tomography (MDCT) and cone beam computed tomography (CBCT) in detecting vertical root fractures (VRF) in the absence and presence of gutta-percha root filling. METHODOLOGY The root canals of 100 extracted human single-rooted teeth were prepared and randomly divided into four groups: two experimental groups with ar...

Journal: :Diagnostic and interventional radiology 2010
Murat Vural Ozgül Uçar Nadir Alper Selvi Lale Paşaoğlu Müge Onbaşioğlu Gürbüz Hülya Ciçekçioğlu Sinan Aydoğdu Suha Koparal

PURPOSE To compare multidetector computed tomography (MDCT) and two-dimensional transthoracic echocardiography (2DE) for left ventricular ejection fraction (EF); and to make comparison between reconstructions of 1-mm and 2-mm slice thickness at MDCT in left ventricular analysis by using a semiautomated segmentation algorithm. MATERIALS AND METHODS In 43 patients global left ventricular systol...

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