Radiologic Technology最新文献

{"title":"Advantages of DOC Technique to Evaluate Distal Biceps Tendon Injuries.","authors":"David M Koppy, Nicholas A Ott, Christopher J Dorvault","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"280-283"},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sonography in Neurosurgery: History, Current Applications, and Future Innovations.","authors":"Eleanor C Smith, Osama N Kashlan, Yamaan S Saadeh","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"303-307"},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photon-Counting CT Binning and Electronic Noise Reduction.","authors":"Kevin L Wininger","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"276-279"},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cardiovascular Effects From Venous Blood Pooling in the Lower Limbs During Prolonged Sitting.","authors":"Kathleen Stanford, Alexander Pomeroy, Lee Stoner","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate whether venous blood pooling in the lower limbs from prolonged sitting induces harmful cardiovascular effects by reducing stroke volume (SV) and cardiac output (CO).</p><p><strong>Methods: </strong>A randomized crossover trial involving 16 participants (mean age = 24.8 years ± 6.0 years, 44% women, 1 dropout) was conducted. The trial consisted of 2 conditions: cuff and noncuff, both involving 2 hours of prolonged sitting with tourniquets placed proximal to each knee. In the cuff condition, the tourniquets were inflated to subdiastolic pressure, allowing arterial inflow but preventing venous outflow. Venous blood pooling was assessed by measuring calf circumference. Cardiac Doppler sonography was used to measure CO, SV, and heart rate (HR) before and after the sitting period.</p><p><strong>Results: </strong>Although the interaction effect between venous blood pooling and CO was not statistically significant (<i>P</i> = .190), there was a significant main effect for time (effect size [ES] = 0.36, β = -0.238, 5.42% decrease). A medium-sized time-by-condition interaction effect for SV was observed (ES = 0.37, β = 6.165), with a 5.87% decrease in the cuff condition and a 2.81% increase in the noncuff condition. Furthermore, there was a large interaction effect for venous blood pooling as measured by calf circumference (ES = 1.98, β = -0.987), with a 3.69% increase in the cuff condition and a 0.03% increase in the noncuff condition.</p><p><strong>Discussion: </strong>Understanding the physiological adaptations that occur during prolonged sitting can provide insight into how and how often to interrupt sitting to prevent deleterious cardiovascular effects. SV decreased during the sitting period of 120 minutes in the cuff condition and increased slightly during in the noncuff condition. However, the changes in CO and HR were more variable and were not perfectly in line with the authors' hypotheses.</p><p><strong>Conclusion: </strong>The findings indicate that as venous blood pooling increases during prolonged sitting, SV decreases, suggesting venous blood pooling influences certain hemodynamic changes associated with prolonged sitting.</p>","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"256-262"},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10963035/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Good Reads.","authors":"Rebecca G Hamm","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"308-309"},"PeriodicalIF":0.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of IVIM in the Spinal Cord of Multiple Sclerosis Patients.","authors":"Brian Johnson, Christine Heales","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the ability of intravoxel incoherent motion (IVIM), a perfusion-weighted imaging technique, to differentiate microcirculation changes in the spinal cord of patients with multiple sclerosis (MS) compared with healthy individuals.</p><p><strong>Methods: </strong>Fifteen healthy individuals and 15 individuals with MS underwent IVIM magnetic resonance (MR) imaging using a 3 T scanner with 2-D axial gradient recalled echo and 2-D axial diffusion-weighted imaging (DWI) sequences. The MR images underwent segmentation to produce white matter and gray matter regions of interest. IVIM metrics for perfusion fraction, pseudo-diffusion coefficients, water-diffusion coefficients, and signal without diffusion encoding were calculated using DWI data. An unpaired <i>t</i> test was performed on these IVIM metrics to compare imaging of healthy individuals with imaging of individuals with MS.</p><p><strong>Results: </strong>No significant differences between images from healthy individuals and individuals with MS were found for any IVIM metric. The lowest <i>P</i> values calculated (.082 and .055) were in the white matter region of interest perfusion fraction and pseudo-diffusion measurements. The gray matter region of interest had the highest <i>P</i> value.</p><p><strong>Discussion: </strong>The findings in this study are consistent with current perfusion-weighted imaging literature focused on MS in the brain. The gray matter in MS patients in this study showed reduced perfusion compared with healthy individuals.</p><p><strong>Conclusion: </strong>IVIM is a promising imaging technique for the evaluation of the spinal cord in MS patients. It has the potential to provide valuable information on microvascular perfusion and diffusion in the spinal cord, which might be related to disease progression and response to treatment.</p>","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"248-255"},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining Factors Associated With Student Attrition in a Diagnostic Medical Sonography Program.","authors":"Jennifer Grace Clark, Jeffrey Fannin","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"272-275"},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Mentoring and Belongingness in The Clinical Setting.","authors":"Jodi-Ann Douglas","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 4","pages":"293-298"},"PeriodicalIF":0.7,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Technologist-Controlled Factors Used During CT Kidney Stone Examinations.","authors":"Kristin Seitz","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Purpose: </strong>To identify technologist-controlled factors to decrease dose and improve image quality and evaluate their use during computed tomography (CT) kidney stone examinations.</p><p><strong>Methods: </strong>Online scholarly databases were searched to acquire peer-reviewed, published articles involving methods of optimizing radiation dose during CT. These articles were reviewed, and the technologist-controlled factors identified were protocol selection, patient centering in the bore, and scan length. The author retrospectively reviewed CT kidney stone examinations performed at a free-standing emergency department to evaluate the use of these factors.</p><p><strong>Results: </strong>Technologists consistently chose the correct scan protocol. Reviewed literature was used to determine the acceptable variance for positioning at isocenter and overscanning beyond anatomical landmarks. All patient positioning was off-center in the vertical direction, and in 3 of those examinations, patient positioning was off-center more than the 3 cm threshold. Horizontal off-center positioning was less frequent. All examinations had some amount of overscan, with 73.1% of patients being overscanned more than the determined threshold of 10% of total scan length.</p><p><strong>Discussion: </strong>Accurate labeling of protocols at the console assist technologists in choosing protocols correctly. Technologists were inconsistent with patient centering and scan range. The amount of which images were off-center was consistent with previous research studies, while the amount of overscan was less than that found in previous studies.</p><p><strong>Conclusion: </strong>Technologists have an important role in optimizing patient radiation dose. Education and quality assurance could help technologists gain awareness of these factors and use them effectively.</p>","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 3","pages":"167-174"},"PeriodicalIF":0.7,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140121372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Imaging Evidence of Eating Disorders.","authors":"McKenzie Mitchell","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":51772,"journal":{"name":"Radiologic Technology","volume":"95 3","pages":"204-206"},"PeriodicalIF":0.7,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140121376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}