Results 71 to 80 of about 40,540 (198)

Expanding the use of real-time electromagnetic tracking in radiation oncology. [PDF]

open access: yes, 2011
In the past 10 years, techniques to improve radiotherapy delivery, such as intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT) for both inter- and intrafraction tumor localization, and hypofractionated delivery techniques ...
Kupelian, Patrick A   +3 more
core   +1 more source

Wire tomography in the H-1NF heliac for investigation of fine structure of magnetic islands [PDF]

open access: yes, 2015
Electron beam wire tomography in the H-1NF heliac enables high resolution mapping of vacuum flux surfaces with minimal disruption of the plasma operations schedule.
Blackwell, Boyd D.   +2 more
core   +1 more source

Diagnostic peritoneal lavage: a review of indications, technique, and interpretation

open access: yesScandinavian Journal of Trauma, Resuscitation and Emergency Medicine, 2009
Diagnostic peritoneal lavage (DPL) is a highly accurate test for evaluating intraperitoneal hemorrhage or a ruptured hollow viscus, but is performed less frequently today due to the increased use of focused abdominal sonography for trauma (FAST) and ...
Weigelt John A, Whitehouse Jill S
doaj   +1 more source

Measuring geometric frustration in twisted inextensible filament bundles

open access: yes, 2017
We investigate with experiments and novel mapping the structure of a hexagonally ordered filament bundle that is held near its ends and progressively twisted around its central axis.
Grason, Gregory M.   +2 more
core   +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]

open access: yes, 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

Pulmonary manifestations in a group of patients with Behçet′s disease

open access: yesThe Egyptian Journal of Internal Medicine, 2015
Background and aim Behçet′s disease (BD) is a multisystem vasculitis and pulmonary involvement in BD is reported to indicate a poor prognosis and high mortality.
Sherif M Naguib   +3 more
doaj   +1 more source

Three-Dimensional Volumetric Analysis of Frontal Ethmoidal Cells and Evaluation of Influential Factors: A Helical Computed Tomography Study. [PDF]

open access: yesTomography, 2022
Ricardo ALF   +7 more
europepmc   +1 more source

Characteristic CT features of pheochromocytomas - probability model calculation tool based on a multicentric study

open access: yesBiomedical Papers, 2019
Objectives: The aim of the study was to evaluate the CT features of adrenal tumors in an effort to identify features specific to pheochromocytomas and second, to define a feasible probability calculation model.
Filip Ctvrtlik   +18 more
doaj   +1 more source

Helical Computed Tomography Has a Role in the Screening of Lung Cancer -- The Con Argument

open access: yesCanadian Respiratory Journal, 2004
Screening constitutes the use of laboratory tests, physical examinations or imaging modalities performed on asymptomatic patients with the intent of identifying subclinical disease (1).
Warren Davidson
doaj   +1 more source

ECG non-gated multi-detector computed tomography protocol prior to catheter ablation of atrial fibrillation provides sufficient data quality with lower radiation exposure compared to ECG-gated protocol. A prospective, randomized and blinded study

open access: yesBiomedical Papers, 2018
Background: The role of ECG-gating in left atrium (LA) computed tomography (MDCT) imaging is not precisely defined. Methods and Results: 62 patients were randomized according to ECG gating with prospective evaluation of image quality, Volume CT Dose ...
Zbynek Tudos   +10 more
doaj   +1 more source

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