Purpose Analysis of patient´s X-ray exposure during percutaneous radiologic gastrostomies (PRG) in a larger population. Materials and Methods Data of primary successful PRG-procedures, performed between 2004 and 2015 in 146 patients, were analyzed regarding the exposition to X-ray. Dose-area-product (DAP), dose-length-product (DLP) respectively, and fluoroscopy time (FT) were correlated with th...

for obtaining reservoir petrophysical properties, for example porosity, non-destructive methods such as x-ray computed tomography, ct, seems to be precise and accurate. porosity is deducted from the ct image with a single scan via different techniques, such as pore space detection by image segmentation techniques then correlation with porosity. more than one hundred samples with carbonate li...

BACKGROUND Pelvic x-ray is a routine part of the primary survey of polytraumatized patients according to Advanced Trauma Life Support (ATLS) guidelines. However, pelvic CT is the gold standard imaging technique in the diagnosis of pelvic fractures. This study was conducted to confirm the safety of a modified ATLS algorithm omitting pelvic x-ray in hemodynamically stable polytraumatized patients...

Improvements in image quality and quantitation measurement, and the addition of detailed anatomical structures are important topics for single-photon emission tomography (SPECT). The goal of this study was to develop a practical system enabling both nonuniform attenuation correction and image fusion of SPECT images by means of high-performance X-ray computed tomography (CT). A SPECT system and ...

POEMS syndrome is a rare plasmacyte-associated disease, one of the major diagnostic criteria of which is sclerotic bone lesion. To detect bone lesions in POEMS syndrome, which imaging method should be routinely applied and what characteristics they display are still unconfirmed. We analyzed clinical data and imaging characteristics of bone lesions in 22 patients with POEMS using multimodal meth...

ACR Appropriateness Criteria 1 Rib Fractures American College of Radiology ACR Appropriateness Criteria Clinical Condition: Rib Fractures Variant 1: Adult. Suspected rib fractures from minor blunt trauma (injury confined to ribs). Radiologic Procedure Rating Comments RRL* X-ray chest 8 Obtain PA view. ☢ X-ray rib views 5 ☢ ☢ ☢ CT chest without IV contrast 3 ☢ ☢ ☢ Tc-99m bone scan whole body 2 ☢...

ACR Appropriateness Criteria 1 Rib Fractures American College of Radiology ACR Appropriateness Criteria Clinical Condition: Rib Fractures Variant 1: Adult. Suspected rib fractures from minor blunt trauma (injury confined to ribs). Radiologic Procedure Rating Comments RRL* X-ray chest 8 Obtain PA view. ☢ X-ray rib views 5 ☢ ☢ ☢ CT chest without contrast 3 ☢ ☢ ☢ Tc-99m bone scan whole body 2 ☢ ☢ ...

Radar imaging and x-ray computed tomography (CT) are both based on inverting the Radon transform. Yet radar imaging can make images from as little as two degrees of aperture while x-ray CT typically requires an aperture of at least 120◦. Our discussion addresses this phenomenon. (Some figures in this article are in colour only in the electronic version)

Industrial CT (computerized tomography) uses a series of 2-dimensional images taken at specific intervals around the entire sample. Basically any type of industrial CT system uses three principal components: an X-ray tube, an X-ray detector, and a rotational stage. Everything is enclosed within a radiation shielding steel/lead/steel cabinet that typically ranges between four and 10 feet cubed. ...