Results 31 to 40 of about 6,102,153 (248)

Value of low-dose and optimized-length computed tomography (CT) scan in CT-guided percutaneous transthoracic needle biopsy of pulmonary nodules

Journal of Interventional Medicine, 2021
Objective: To investigate the value of application of low-dose and optimized length CT scan on puncture results, complications and patients’ radiation dosage during CT-guided percutaneous biopsy of pulmonary nodules (PTNB).
Hui Yuan, Da Li, Yan Zhang, Xiaozhen Xie, Lujun Shen   +4 more
doaj   +1 more source

Radiation Dose.

, 2013
CTDI: computed tomography dose index, DLP: dose length product, ED: effective dose.
Min Li (12799), Hai-yang Geng (493563), Wei-lan Zhang (493562), Bo Zhang (6559), Ke Xu (134879), Yin-qiang Liang (493564), Song-bai Li (493565)   +6 more
core   +1 more source

Radiation dose and contrast medium dose measurements.

, 2015
CTDIvol, CT dose index volume; DLP, dose length product; ED, effective dose.Radiation dose and contrast medium dose measurements.
Lei Xu (78676), Yanguang Shen (688413), Nan Zhang (46264), Zixu Yan (688414), Zhanming Fan (635272), Zhonghua Sun (572851), Yu Li (183836)   +6 more
core   +1 more source

Submillisievert CT chest for COVID-19 patients in a rural hospital with limited resources

The Egyptian Journal of Radiology and Nuclear Medicine, 2022
Background This is a secondary analysis of prospectively acquired data approved by the hospital institutional board committee. We performed a retrospective chart review of 463 patients who underwent a CT Chest for suspected COVID-19 infection between ...
Sammy Tawk, Wissam Mansour, Dayana Sleiman, Setrida Gemayel, Edgard Lozom, Karl El Mendelek, Nicole Saliba, Charbel Mourad   +7 more
doaj   +1 more source

Correlation between Body Mass Index and Radiation Dose Metrics in Adult Thorax and Abdomen Computed Tomography Examination: A Cross-sectional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Computed Tomography (CT) procedures contribute significantly to medical radiation exposure and therefore necessitate the implementation of optimisation measures that balance diagnostic image quality with patient safety. Body Mass Index (BMI)
Pritee Prachee Pradhan, Maajid Mohi Ud Din Malik   +1 more
doaj   +1 more source

Image quality and radiation dose assessment for the clinically applied 16-slice CT scanner using PMMA phantom and quality assurance phantom

The Egyptian Journal of Radiology and Nuclear Medicine, 2023
The goal of this study was to assess the radiation dose delivered accuracy and the acceptable image quality parameter from the 16-slice Philips CT scanner in order to evaluate the current methodology for quality controls of computed tomography systems ...
Tadelech Sisay Mekonin, Tilahun Tesfaye Deressu   +1 more
doaj   +1 more source

Evaluation of the effect of the introduction of iterative reconstruction (iDose) on dose length product (mGy.cm) and effective dose (mSv) across CT protocols.

, 2015
1Dose length product, measured in mGy.cm2Effective dose calculated using ImPACT in mSv3Mean rank of DLP / Effective Dose before and following iDose. using the Mann Whitney U test (a rank-order (or nonparametric test) which assesses whether the before and
David A. J. Gibson (570345), Richard Fox (153532), Rene K. Forsyth (570346), Rachael E. Moorin (314872)   +3 more
core   +1 more source

Radiation dose metrics in multidetector computed tomography examinations: A multicentre retrospective study from seven tertiary care hospitals in Kerala, South India

Indian Journal of Radiology and Imaging, 2018
Background: Presently, computed tomography (CT) is the most important source of medical radiation exposure. CT radiation doses vary considerably across institutions depending on the protocol and make of equipment.
Binoj Varghese, Indu Kandanga, Paul Puthussery, Dhanesh Vijayan, S P Harish Babu, M K Aneesh, Muhammad Noufal, E V Binu, Arun C Babu, Sheen M James, Siva Kumar   +10 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Radiation dose comparison of two lower extremity CTA protocols.

, 2014
DLP = dose-length product; CTDIvol = volume CT dose index; ED = effective dose.
Chang Sheng Zhou (575783), Li Qi (575782), Guang Ming Lu (290337), Felix G. Meinel (394745), U. Joseph Schoepf (487105), Yan E. Zhao (575784), Long Jiang Zhang (289575)   +6 more
core   +1 more source