Results 71 to 80 of about 5,827,231 (253)

Proposing Multiregional Diagnostic Reference Levels for Common CT Angiography Examinations in Saudi Arabia

Diagnostics
Objectives: Diagnostic reference levels (DRLs) are crucial tools for optimizing radiation exposure during different radiological examinations. This study aimed to establish preliminary DRLs for commonly performed computed tomographic angiography (CTA ...
Ali Alhailiy, Essam Alkhybari, Mohammed Alshuhri, Abdullah Al-Othman, Tarek Hegazi, Mohammed Alsuhaimi, Sultan Alghamdi, Khaled Alenazi, Yazeed Alashban, Sami Alghamdi, Omar Quzi, Osama Jaafari, Saleh Alajlani, Abdulrahman Masmali, Yasser Hadi, Elbagir Manssor, Mustafa Mahmoud   +16 more
doaj   +1 more source

Establishment of diagnostic reference levels in computed tomography for select procedures in Pudhuchery, India

Journal of Medical Physics, 2014
Computed tomography (CT) scanner under operating conditions has become a major source of human exposure to diagnostic X-rays. In this context, weighed CT dose index (CTDI w ), volumetric CT dose index (CTDI v ), and dose length product (DLP) are ...
A Saravanakumar, K Vaideki, K N Govindarajan, S Jayakumar   +3 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Nonparametric Estimators of Dose-Response Functions [PDF]

We propose two semiparametric estimators of the dose-response function based on spline techniques. Under uncounfoundedness, the generalized propensity score can be used to estimate dose-response functions (DRF) and marginal treatment effect functions. In
MATTEI Alessandra, FLORES Carlos A., BIA Michela   +2 more
core  

Improving the approach to calculating shielding in computed tomography rooms

Радиационная гигиена
The study assessed the acceptability of the currently existing approach to calculating shielding in computed tomography rooms and formulated proposals for its improvement, taking into account the parameters of research in domestic medical practice. It is
P. S. Druzhinina, L. A. Chipiga, V. Yu. Golikov, A. V. Vodovatov, S. Yu. Bazhin, E. N. Shleenkova, G. V. Berkovich, I. V. Soldatov, Z. A. Lantukh, K. V. Tolkachev   +9 more
doaj   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

FEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana, Avigail Yariv, Tal Oppenheim, Hadar Amartely, Dana Reichmann, Oded Livnah   +5 more
wiley   +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

Malformin A1–mediated cytotoxicity in ovarian cancer cells occurs through pyroptosis and autophagy

FEBS Open Bio, EarlyView.
This study investigated the effects of the natural compound Malformin A1 (MA1) on the cytoskeleton that regulates cell proliferation and migration. Disruption of the cytoskeleton can impair these processes and promote cancer cell death. MA1 disrupted cytoskeletal organization, induced DNA damage, inflammation, activated autophagy, and pyroptosis ...
Nada Abdullah Hassan, Ikram A. Burney, Shika Hanif Malgundkar, Siva Ramamoorthy, Ressin Varghese, Mohamed A. Al‐Kindi, Hamad Al Riyami, Shadia Al Bahlani, Sergey Dobretsov, Syed Imran Hassan, Benjamin K. Tsang, Yahya Tamimi   +11 more
wiley   +1 more source

Dose-length-product determination on cone beam computed tomography through experimental measurements and dose-area-product conversion

, 2021
The dosimetry of cone beam computed tomography (CBCT) is not fully elaborated yet, and some of these systems presents dose-area-product (DAP) values after an examination rather than, as in the case of traditional CT, the doselength- product (DLP).
Tingberg, Anders, Fransson, Veronica
core   +1 more source

Radiation dose associated with common computed tomography examination

The Egyptian Journal of Radiology and Nuclear Medicine, 2017
Objective: To survey computed tomography (CT) radiation dose associated with non-contrast spiral Multislice CT examination in our institute. Methods: Detailed parameters for 362 consecutive examinations, including the patient weight, height, volume CT ...
Ayman Mokhtar, Mohamed Elawdy, Maysa Abd El-Hamid, Huda Refaie, Tarek A. El-Diasty, Sabry El Mogy   +5 more
doaj   +1 more source