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Journal of the Canadian Association of Radiologists最新文献

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Concentric folds in the bladder: a new sign of chronic outlet obstruction and neurogenic bladder. 膀胱同心褶皱:慢性出口梗阻和神经源性膀胱的新征象。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
M Kunin, D Kerin
{"title":"Concentric folds in the bladder: a new sign of chronic outlet obstruction and neurogenic bladder.","authors":"M Kunin,&nbsp;D Kerin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The finding of concentric folds in the bladder on excretory urography is a hitherto unreported but reliable sign of chronic urinary retention, usually due to outlet obstruction or neurogenic bladder. In a study of 152 consecutive patients with urinary retention, the presence of typical concentric folds alone was found to be as common and, therefore, as sensitive an indicator as trabeculation. The sign is useful in evaluating the significance of the incompletely emptied bladder on the post-void film, and in detecting unsuspected disease. A false-positive rate of 1.5% was found in a control series of 190 women, and no false-positive findings were seen in 214 men concurrently studied. A hypothesis concerning the mechanism of concentric fold formation is advanced.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"360-2"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17152292","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}
引用次数: 0
Comparison of digital and radionuclide left ventriculography in patients at risk from conventional left ventriculography. 数字和放射性核素左心室造影在传统左心室造影高危患者中的比较。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
L Lemarbre, E Paquet, M G Bourassa, J Lespérance, G Dupras, J Laurier
{"title":"Comparison of digital and radionuclide left ventriculography in patients at risk from conventional left ventriculography.","authors":"L Lemarbre,&nbsp;E Paquet,&nbsp;M G Bourassa,&nbsp;J Lespérance,&nbsp;G Dupras,&nbsp;J Laurier","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In this study, two alternative methods of assessing left ventricular (LV) sequential wall motion and ejection fraction (EF) were used in 28 consecutive patients in whom an unstable clinical condition (unstable angina pectoris or severe LV dysfunction) precluded the use of high volume contrast cineventriculography. A new approach, direct small volume contrast digital ventriculography, was compared to radionuclide blood pool ventriculography considered as a \"standard\" and reliable technique. The qualitative analysis of regional LV contraction by three independent observers showed a complete agreement in 64% of segments studied in the left anterior oblique (LAO) projection and in 69% in the right anterior oblique (RAO) projection; a one-degree disagreement was observed in 13% and 19% respectively, and a discrepancy of two degrees or more in 23% and 12% respectively. Left ventricular ejection fraction calculated from both techniques correlated relatively well (r = 0.82). The radionuclide examination still remains the fastest, easiest and most objective way to appraise global LV function in high risk patients. However, optimal analysis of segmental wall motion requires invasive digital contrast left ventriculography. In future, a more general use of non-ionic contrast media including their intravenous injection and the advent of portable digital devices should permit their widespread use as a safe, rapid and reliable procedure even in the intensive care unit.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"349-53"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17456843","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}
引用次数: 0
A quality control program for cine radiography. 电影放射线摄影的质量控制程序。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
L Renaud, R Morissette
{"title":"A quality control program for cine radiography.","authors":"L Renaud,&nbsp;R Morissette","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We describe a ciné processing quality control program aimed at the consistent production of high quality angiograms. A year's experience with this protocol has demonstrated the difficulty and importance of maintaining a constant on-frame optical density to ensure consistently high quality. We monitored film processing, speed of the emulsion and the automatic brightness control of the angiographic imaging system several times a day. Variations in film speed and their causes observed in our institution demonstrate that parameters other than film processing should be carefully controlled. The cost of applying this protocol is about +190.00/month and it requires no additional personnel. The cost is offset by the improved quality of the angiograms, reduced repeat examinations, and the improved monitoring of the system making for more effective preventative and corrective maintenance.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"380-2"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17582392","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}
引用次数: 0
CT diagnosis of laryngeal cricoid chondrosarcoma. 喉环软骨肉瘤的CT诊断。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
R C Goiney, J B Martyn, D M Nichols, D N Ostrow
{"title":"CT diagnosis of laryngeal cricoid chondrosarcoma.","authors":"R C Goiney,&nbsp;J B Martyn,&nbsp;D M Nichols,&nbsp;D N Ostrow","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Computerized tomography is the imaging method of choice for evaluation of neoplastic involvement of the larynx. There are unusual primary neoplasms of the larynx which include chondroma and chondrosarcoma. These lesions may cause vocal cord paralysis and respiratory symptoms secondary to compression of the recurrent laryngeal nerve. We present a single patient with computerized tomographic imaging of laryngeal chondrosarcoma resulting in unilateral vocal cord paralysis and hoarseness.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"404-5"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17584630","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}
引用次数: 0
Cross-mesh radiopaque grid for localization of segmental coronary artery disease during transluminal angioplasty. 在腔内血管成形术中定位节段性冠状动脉疾病的交叉网格不透明网格。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
J Rottenfusser
{"title":"Cross-mesh radiopaque grid for localization of segmental coronary artery disease during transluminal angioplasty.","authors":"J Rottenfusser","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A simple, inexpensive radiopaque cross-mesh grid has been devised to assist in localization of coronary artery lesions for placement of balloon catheters during percutaneous transluminal coronary angioplasty. The grid is made of radiopaque lines encased in a flexible plastic. In use this grid is placed on the patient's chest and provides multiple landmarks without obscuring vascular detail. The grid has been in use here for more than six months and has proven to be a helpful tool.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"390-1"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17304477","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}
引用次数: 0
Breast skin thickness: normal range and causes of thickening shown on film-screen mammography. 乳房皮肤厚度:乳房x光片显示的正常范围和增厚的原因。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
T L Pope, M E Read, T Medsker, A J Buschi, A N Brenbridge
{"title":"Breast skin thickness: normal range and causes of thickening shown on film-screen mammography.","authors":"T L Pope,&nbsp;M E Read,&nbsp;T Medsker,&nbsp;A J Buschi,&nbsp;A N Brenbridge","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We measured breast skin thickness on the film-screen mammograms of 250 asymptomatic women and found a normal range of 0.7-2.3 mm in the superior quadrant and 0.7-2.7 mm in the inferior quadrant as measured on the mediolateral view and 0.6-2.4 mm in the medial quadrant and 0.5-2.1 mm in the lateral quadrant as measured on the craniocaudad view. In our experience a skin thickness of greater than 2.5 mm suggests the presence of disease. Causes of skin thickening in our series of 44 patients included carcinoma, metastases, post radiation therapy, post surgery, infection, and anasarca. Other reported causes are trauma, fat necrosis, dermatologic conditions, and lymphoma.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"365-8"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17582390","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}
引用次数: 0
Abdominal halo in Tc-99M DISIDA hepatobiliary scintigraphy: a sign of massive ascites. Tc-99M DISIDA肝胆造影显示腹部晕:大量腹水的征象。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
W J Shih, F H DeLand, P A Domstad
{"title":"Abdominal halo in Tc-99M DISIDA hepatobiliary scintigraphy: a sign of massive ascites.","authors":"W J Shih,&nbsp;F H DeLand,&nbsp;P A Domstad","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>An abdominal halo was demonstrated in a Tc-99m di-isopropyl imminodiacetic acid (DISIDA) hepatobiliary scintigram of a patient with a long history of alcohol abuse and liver disease complicated by massive ascites. This halo was not observed in the concurrent Tc-99m sulfur colloid study. Large amounts of ascitic fluid floated the liver, the bowel and the mesentery in the central abdomen forming an abdominal halo, a band-like clear zone around the abdominal organs. Severe hepatic dysfunction, resulting in prolongation of the blood pool phase in the Tc-99m DISIDA study, will cause exaggeration of this finding. When an abdominal halo is seen it should be considered a sign of massive ascites.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"397-8"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17396701","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}
引用次数: 0
Radiology 1984. A conflict of high technology and high cost. 1984年放射学。高技术和高成本的冲突。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
R G Evens
{"title":"Radiology 1984. A conflict of high technology and high cost.","authors":"R G Evens","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Radiology is confronted now by exciting but challenging times. The excitement derives from dramatic technological advance; the challenge from the economic constraints on health care delivery. The large and growing expense of providing health care is readily apparent and high technology medicine can too easily be blamed for the growth. The pressures for improved service at no extra cost will demand much of the negotiating skills of our specialty and our ability to survive administrative confusion and fragmentation. Equally, manpower planning is a feature of modern medicine. Often this is done from inadequate data and as a specialty we must continue to think constructively about our own future in this context, not least in recognizing the contribution of women to our specialty. Forces also to be recognized are decentralization, electronic information transfer, concerns about radiation exposure and litigation. Not least we need to be better able to define our specialty as its scope is now changing rapidly. For the future I hope that we can be part of the development of the controls which we must inevitably face; we should lead in instituting cost-accounting in our departments; we must be at the leading edge of technological change in both imaging and data transfer, and we must be both more business-like as well as act effectively as the patient's advocate. Radiology has an important and growing responsibility in patient care and most of the technological advances both improve that care and can be justified economically. I am proud to be a radiologist in 1984.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"332-7"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17582386","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}
引用次数: 0
Pitfall in the investigation of splenic trauma. 脾脏损伤调查中的陷阱。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
S Jacobs, J Kirsh, M Goldfinger, I Rosen
{"title":"Pitfall in the investigation of splenic trauma.","authors":"S Jacobs,&nbsp;J Kirsh,&nbsp;M Goldfinger,&nbsp;I Rosen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A patient with suspected splenic trauma is reported in whom, because of an anatomic variant, both radionuclide and sonographic examinations were misleading and led to the erroneous diagnosis of splenic laceration. Confusion arose because of an overlying left lobe of liver and this was clarified by biliary scintigraphy.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"378-9"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17456845","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}
引用次数: 0
Migration of T-tubes into biliary tree. t管移入胆道。
Journal of the Canadian Association of Radiologists Pub Date : 1984-12-01
J Zanbilowicz
{"title":"Migration of T-tubes into biliary tree.","authors":"J Zanbilowicz","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Migration of T-tubes inserted after bile duct exploration can occur either up into the liver or down the common duct. This can result in either obstruction or fistula formation.</p>","PeriodicalId":76034,"journal":{"name":"Journal of the Canadian Association of Radiologists","volume":"35 4","pages":"383-7"},"PeriodicalIF":0.0,"publicationDate":"1984-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17456846","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}
引用次数: 0
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