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891.
Magnetic resonance (MR) imaging of the patient with acute cervical injury is important because of the potential prognostic significance of the appearance of the spinal cord at the time of injury. However, cervical traction may involve equipment incompatible with the magnetic environment, and transferring the patient to the imaging table may make it difficult to maintain traction. The authors describe a simple, inexpensive, and reliable method for providing cervical traction within the magnet room. 相似文献
892.
Acne-associated spondylarthropathy: radiographic features 总被引:3,自引:0,他引:3
Experience with six patients with severe acne and associated axial and peripheral arthritis is described. Four of the patients had a dermatologic triad of severe acne, hidradenitis suppurativa, and dissecting cellulitis of the scalp, the so-called follicular occlusion triad. All were black men with episodic peripheral arthropathy and low back pain. One had inflammatory bowel disease. Rheumatoid factor and HLA-B27 were absent in five patients who had these determinations. An erosive and proliferative arthritis of the axial and appendicular skeleton is described. The radiographic findings were indistinguishable from those of the seronegative spondylarthropathies. We found no previous reports in the radiologic literature describing this articulocutaneous entity. 相似文献
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SJ Kim S Kim CW Kim TH Lee JW Lee SH Lee KS Choo GH Kim 《Journal of Medical Imaging and Radiation Oncology》2007,51(4):309-314
The 3‐D gradient‐echo (GRE) sequence allows thinner sections and better resolution of biliary obstruction. When the presence of biliary obstruction is identified using magnetic resonance cholangiopancreatography, the addition of the 3‐D GRE sequence may be helpful for diagnosing biliary obstruction. By showing the changes in the bile duct wall, within the duct lumen and around the bile duct, this technique can be helpful for distinguishing benign from malignant stricture as well as a stone from an enhancing intraluminal mass. 相似文献
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Objectives:
The purpose of this study was to compare the clinical utility of fluoride-18 positron emission tomography (18F-PET)/CT with that of conventional 99mTc-methylene diphosphonate (MDP) bone scan in temporomandibular disorder (TMD) with osteoarthritis.Methods:
24 patients with TMD who underwent both 18F-PET/CT and 99mTc-MDP bone scans for diagnostic work-up were enrolled. The temporomandibular joint (TMJ)-to-skull uptake ratio, TMJ-to-muscle uptake ratio and TMJ-to-spine uptake ratio on 18F-PET/CT and the TMJ uptake ratio on bone scan were measured.Results:
Of the 48 TMJs in 24 patients, 35 TMJs were diagnosed as TMD with osteoarthritis, 8 TMJs as TMD with anterior disc displacement (ADD), and the remaining 5 TMJs showed no evidence of TMD (NED). All three uptake ratios on 18F-PET/CT and the TMJ uptake ratio on the bone scan tended to be higher in TMD with osteoarthritis than in TMD with ADD or NED. Receiver operating characteristic (ROC) curve analysis for detecting TMD with osteoarthritis indicated that the TMJ-to-skull uptake ratio, TMJ-to-muscle uptake ratio and TMJ-to-spine uptake ratio on PET/CT (0.819, 0.771 and 0.813, respectively) showed higher area under the ROC curve value than the TMJ ratio on bone scan (0.714). The TMJ-to-skull uptake ratio on PET/CT showed the highest sensitivity (89%) and accuracy (81%) of all uptake ratios.Conclusions:
18F-PET/CT can help diagnose TMD with osteoarthritis with superior diagnostic ability and is a suitable alternative modality to a conventional 99mTc-MDP bone scan. 相似文献897.
Application and optimisation of the Comparison on Extreme Laboratory Tests (CERT) algorithm for detection of adverse drug reactions: Transferability across national boundaries 下载免费PDF全文
Mun Yee Tham Qing Ye Pei San Ang Liza Y. Fan Dukyong Yoon Rae Woong Park Zheng Jye Ling James W. Yip Bee Choo Tai Stephen JW Evans Cynthia Sung 《Pharmacoepidemiology and drug safety》2018,27(1):87-94
Purpose
The Singapore regulatory agency for health products (Health Sciences Authority), in performing active surveillance of medicines and their potential harms, is open to new methods to achieve this goal. Laboratory tests are a potential source of data for this purpose. We have examined the performance of the Comparison on Extreme Laboratory Tests (CERT) algorithm, developed by Ajou University, Korea, as a potential tool for adverse drug reaction detection based on the electronic medical records of the Singapore health care system.Methods
We implemented the original CERT algorithm, comparing extreme laboratory results pre‐ and post‐drug exposure, and 5 variations thereof using 4.5 years of National University Hospital (NUH) electronic medical record data (31 869 588 laboratory tests, 6 699 591 drug dispensings from 272 328 hospitalizations). We investigated 6 drugs from the original CERT paper and an additional 47 drugs. We benchmarked results against a reference standard that we created from UpToDate 2015.Results
The original CERT algorithm applied to all 53 drugs and 44 laboratory abnormalities yielded a positive predictive value (PPV) and sensitivity of 50.3% and 54.1%, respectively. By raising the minimum number of cases for each drug‐laboratory abnormality pair from 2 to 400, the PPV and sensitivity increased to 53.9% and 67.2%, respectively. This post hoc variation, named CERT400, performed particularly well for drug‐induced hepatic and renal toxicities.Discussion
We have demonstrated that the CERT algorithm can be applied across national boundaries. One modification (CERT400) was able to identify adverse drug reaction signals from laboratory data with reasonable PPV and sensitivity, which indicates potential utility as a supplementary pharmacovigilance tool. 相似文献898.
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