Results 11 to 20 of about 40,683 (297)
Arquivos Brasileiros de Cardiologia, 2000 OBJECTIVE: To assess the relation between coronary artery disease and the calcification index on helical computed tomography. METHOD: We studied 22 patients (ages ranging from 40 to 70 years) who underwent coronary angiography because of chest pain ...
Carlos Jader Feldman +2 more
doaj +1 more source
Total-liver-volume perfusion CT using 3-D image fusion to improve detection and characterization of liver metastases [PDF]
, 2008 The purpose of this study was to evaluate the feasibility of a totalliver- volume perfusion CT (CTP) technique for the detection and characterization of livermetastases.
Kuijk, Cornelis van +5 more
core +12 more sources
Assessment of ureteric diameter using contrast-enhanced helical abdominal computed tomography
African Journal of Urology, 2020 Background Assessment of ureteric size is imperative for diagnosis of urinary tract abnormalities especially with regard to obstructive pathologies. The ureteric opacification and distension obtained from contrast-enhanced computed tomography allows for ...
Ukamaka Dorothy Itanyi +3 more
doaj +1 more source
Evaluation of some spiral and sequential computed tomography protocols of adults used in three hospitals in Shiraz, Iran with American College of Radiology and European Commission guidelines [PDF]
, 2018 Purpose: Use of computed tomography (CT) has increased considerably all over the world. In addition, there has been an increased demand for utilisation of CT scanning in Iran over the past decade, especially after introducing multi-detector computed ...
Eghlidospoor +2 more
core +1 more source
Helical/spiral computed body tomography
Clinical Radiology, 1997 Summary Helical CT has profound implications for routine imaging in the chest and abdomen as well for specialized imaging of hollow organs and blood vessels. The ability to image the chest or abdomen in a single breath and to review overlapping images retrospectively has improved our ability to detect and measure the attenuation of small lesions ...
J A, Brink, E G, McFarland, J P, Heiken
openaire +2 more sources
Patient Dose Estimation in Computed Tomography-Guided Biopsy Procedures
Journal of Imaging, 2023 This study establishes typical Diagnostic Reference Levels (DRL) values and assesses patient doses in computed tomography (CT)-guided biopsy procedures.
Evangelia Siomou +4 more
doaj +1 more source
Tactics of Primary Emergency Radiation Diagnosis of Politrauma
Вестник рентгенологии и радиологии, 2021 The review considers the problem of choosing the optimal tactical approach to primary emergency radiation diagnosis of injuries during polytrauma based on data on indications for use, advantages and disadvantages of modern methods and protocols of ...
Yu. G. Shapkin +2 more
doaj +1 more source
A novel ultrafast-low-dose computed tomography protocol allows concomitant coronary artery evaluation and lung cancer screening [PDF]
, 2018 BACKGROUND:Cardiac computed tomography (CT) is often performed in patients who are at high risk for lung cancer in whom screening is currently recommended.
Bandiera, A +10 more
core +1 more source
Molecular Imaging, 2010 Positron emission tomography–computed tomography (PET-CT) uses CT attenuation correction but suffers from misregistration artifacts. However, the quantitative accuracy of helical versus cine CT in the same patient after optimized coregistration by ...
Nils P. Johnson +2 more
doaj +1 more source
Results in Physics, 2016 Focusing on whole-body uniformity in small-animal single-photon emission computed tomography (SPECT), we examined the optimal helical acquisition parameters using five-pinhole collimators for mouse imaging.
Naoyuki Ukon +5 more
doaj +1 more source