نتایج جستجو برای: x ray ct

تعداد نتایج: 753974  

Journal: :Seminars in nuclear medicine 2003
Paul E Kinahan Bruce H Hasegawa Thomas Beyer

A synergy of positron emission tomography (PET)/computed tomography (CT) scanners is the use of the CT data for x-ray-based attenuation correction of the PET emission data. Current methods of measuring transmission use positron sources, gamma-ray sources, or x-ray sources. Each of the types of transmission scans involves different trade-offs of noise versus bias, with positron transmission scan...

2017
Hiroyuki FUJIMOTO Osamu SATO Toshiyuki TAKATSUJI Makoto ABE Kazuya MATSUZAKI

An X-ray computed tomography (CT) system that is capable of dimensional measurements is incleasingly propergating in our life because the realization of simultaneous nondestructive dimensional measurements for outward forms and inward forms on dense spatial points in short time duration remarkably facilitates production loop. However, the X-ray CT is still not applicable to all of industrial ob...

Journal: :The spine journal : official journal of the North American Spine Society 2008
Guy R Fogel John S Toohey Arvo Neidre John W Brantigan

BACKGROUND Plain radiographic assessment of posterolateral fusion has been reported as accurate in only two thirds of patients who were found to be healed at surgical exploration. Plain radiographic techniques for fusion assessment of interbody fusion with radiolucent cages are reported to be accurate. A helical computed tomography (CT) scan shows a high sensitivity for pseudarthrosis compared ...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2011
Abdul Sattar Ijaz Ahmad Azhar Mehmood Javed Sadia Anjum

OBJECTIVE To evaluate the diagnostic value of chest X-Ray in tracheobronchial foreign body aspiration among group of children in southern Punjab. METHODS The Cross sectional/comparative diagnostic procedural study was conducted in the Department of Radiology, Nishtar Medical College and Children Hospital Complex. Multan from January 2009-January 2011. Chest CT was performed in 45 consecutive ...

Introduction: The aim of the current study was to investigate the effects of X-ray radiation on some hematological parameters, morphology of red blood cells (RBC) and erythrocyte sedimentation rate (ESR) analysis of human blood using computed tomography (CT) scanner. Material and Methods: For the purpose of the study, 5 ml of wholeblood was drawn from vein puncture of 28 healthy people and div...

Journal: :international journal of epidemiologic research 2015
ayoob rostamzadeh masoud amiri mohammad gharib salehi hossein masoumi

magnetic resonance imaging (mri) uses a constant magnetic field and radio waves, a non-invasive method for examining tissues, organs and the skeletal system. the advantages and disadvantages of mri is not fully understood. in the computerized tumor (ct) scan, as an invasive method, the x-rays of the body is used for tomography; which different x-ray attenuation coefficient in tissues as well as...

Journal: :journal of minimally invasive surgical sciences 0
rakesh kumar thakur department of pediatric surgery, royal alexandra children’s hospital, uk +44-1273696955, [email protected]; department of pediatric surgery, royal alexandra children’s hospital, uk +44-1273696955, [email protected] anies mahomed department of pediatric surgery, royal alexandra children’s hospital, uk +44-1273696955, [email protected]

conclusions in cases of pontaneous pneumothorax, chest x ray and computerised tomographic scan have limitations. ct scan in combination with video assisted thoracoscopic surgery improves diagnostic accuracy and facilitates appropriate management of non-resolving spontaneous pneumothorax. objectives a 15 year old boy presented to the referring hospital with a right sided spontaneous pneumothorax...

Journal: :archives of trauma research 0
brandon c. chapman department of surgery, university of colorado school of medicine, colorado, united states; department of surgery, university of colorado school of medicine, colorado, united states. tel: +1-7207373858 douglas m. overbey department of surgery, university of colorado school of medicine, colorado, united states feven tesfalidet school of medicine, university of colorado, colorado, united states kristofer schramm department of radiology, school of medicine, university of colorado, colorado, united states robert t. stovall department of surgery, denver health medical center, colorado, united states andrew french department of emergency medicine, denver health medical center, denver, co, united states

methods retrospective cohort study of blunt trauma patients with rib fractures at a level i trauma center that had both a cxr and a ct chest. the ct finding of ≥ 3 additional fractures in patients with ≤ 3 rib fractures on cxr was considered clinically meaningful. student’s t-test and chi-square analysis were used for comparison. results we identified 499 patients with rib fractures: 93 (18.6%)...

Journal: :Japanese Journal of Radiological Technology 1994

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید