Expert alert: Are CT scans safe?

ROCHESTER, Minn. — With questions lingering about the safety of medical imaging and the radiation that is used in some of those tests, Mayo Clinic radiation safety expert Cynthia McCollough, Ph.D., wrote a paper that provides clear answers that she hopes will allay patients’ fears. Dr. McCollough wrote “Answers to Common Questions About the Use [...]
Source: News from Mayo Clinic - Category: Databases & Libraries Source Type: news

Related Links:

This study aimed to evaluate the intra- and interobserver agreement for fracture classifications of the glenoid, using either plain radiographs, computed tomography (CT) scans. The study was retrospective, using images with a variety of fracture types. Six observers classified the fracture patterns. Classifications of Ideberg, OTAAO, Mayo and Euler/Ruedi were used. Agreement was determined using kappa coefficients. Currently used glenoid fracture classification systems have a fair to moderate intraobserver reliability. Combining plain radiographs and CT scans led to a better observer agreement. For interoberserver reliabil...
Source: Acta Orthopaedica Belgica - Category: Orthopaedics Tags: Acta Orthop Belg Source Type: research
Authors: Mišič J, Popović P, Hribernik M, Starc A, Dahmane R Abstract In the liver, there are many vascular variants, which are important in liver surgery, the presence of accessory right hepatic veins (aRHVs) in particular. Th eir frequency, number and diameter vary considerably. Detailed imaging diagnostics with computed tomography (CT) should be undertaken before surgery. Th e aim of our study was to examine the characteristics of aRHVs and their demographic correlations. Th e study included data on 188 patients that underwent CT examination of the abdomen with contrast media, 103 men (54.8%) men and 85...
Source: Acta Clinica Croatica - Category: General Medicine Tags: Acta Clin Croat Source Type: research
Publication date: 10 January 2019Source: Materials Science and Engineering: A, Volume 742Author(s): J. Tan, L. Lu, H.Y. Li, X.H. Xiao, Z. Li, S.N. LuoAbstractPlate impact experiments are conducted on a rolled titanium alloy Ti-6Al-4V to investigate the effects of structural anisotropy on dynamic deformation and damage, with the loading axis being parallel to the normal direction or transverse direction, referred to as LA∥ND and LA∥TD, respectively. Free-surface velocity histories are measured to evaluate the mechanical properties; the Hugoniot elastic limits for the LA∥ND and LA∥TD loading are 3.38 GPa and 3...
Source: Materials Science and Engineering: A - Category: Materials Science Source Type: research
ConclusionPre-operative diagnosis of strangulated Spigelian hernia is difficult but can be aided by a CT. The use of nylon darning to re-inforce the repair can be rewarding where mesh cannot be used or unavailable.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
ConclusionEpitheloid hemangioendothelioma could involve different parts of the heart and the lung. The diagnosis necessitates performing a biopsy. Surgical excision is recommended.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
The objective of this study was to evaluate screw choices for three-dimensional (3D) digital pre-operative planning of osteosynthesis of distal radius fractures and to compare with the screw choices for the conventional method. METHODS: Distal radius fracture patients who underwent osteosynthesis using volar locking plates were evaluated. Thirty wrists in the plan group utilized 3D preoperative planning, and nineteen wrists in the control group utilized conventional preoperative assessment. In the plan group, the 3D preoperative planning was performed prior to surgery. The reduction was simulated with 3D image, and th...
Source: Hand Surgery - Category: Surgery Authors: Tags: J Hand Surg Asian Pac Vol Source Type: research
This study aims to evaluate the accuracy of patient-specific computed tomography (CT)-based rapid prototype drill guide templates for the CBT technique. CT scanning was performed in 7 cadaveric thoracolumbar spines, and a 3-dimensional reconstruction model was generated. By using computer software, we constructed drill templates that fit onto the posterior surface of thoracolumbar vertebrae with drill guides to match the CBT. In total, 80 guide templates from T11 to L5 were created from the computer models by using rapid prototyping. The drill templates were used to guide the drilling of CBT screws without any fluoroscopic...
Source: Techniques in Orthopaedics - Category: Orthopaedics Tags: Novel Research Methods and Models Source Type: research
This article describes the process of performing a computed tomography scan for coronary artery calcium, quantifying the score and interpreting the results.
Source: Radiologic Clinics of North America - Category: Radiology Authors: Source Type: research
Computed tomography of the heart can characterize and differentiate various forms of nonischemic cardiomyopathy, which are covered individually in this article. With its excellent spatial and ever-improving temporal resolution, computed tomography scanning can delineate cardiac function, anatomy, and myocardial tissue characterization. Various cardiac computed tomography techniques can be tailored to the relevant clinical question, as discussed in the article. Although cardiac computed tomography scanning is not often the primary modality for myocardial evaluation, decreasing radiation doses and emerging applications make ...
Source: Radiologic Clinics of North America - Category: Radiology Authors: Source Type: research
In the United Kingdom, around 56,000 patients with angina, a chest condition that can decrease blood flow to the heart, were unable to undergo necessary CT scans last year due to the region ’s radiologist shortage.According to a recent review from the Royal College of Radiologists (RCR) and the British Society of Cardiovascular Imaging (BSCI), there should have been 132,090 CT coronary angiography (CTCA) tests performed throughout England, Scotland, Wales, and Northern Ireland in 2017. However, only 75,791 —or 57 percent — of those tests were administered.Approximately 69,900 scans were performed in Engla...
Source: radRounds - Category: Radiology Authors: Source Type: blogs
More News: CT Scan | Databases & Libraries | PET Scan