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Current opinion in radiology最新文献

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Doppler echocardiography. 多普勒超声心动图。
Current opinion in radiology Pub Date : 1992-08-01
A S Agatston, O Santana
{"title":"Doppler echocardiography.","authors":"A S Agatston,&nbsp;O Santana","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the past year, Doppler echocardiography has continued to transform the \"echo laboratory\" into a \"cardiac imaging and hemodynamics laboratory.\" Evaluation of blood flow through the cardiac chambers and great vessels is moving from semiquantitative to quantitative. The potential for measuring mitral regurgitant flow more precisely has been demonstrated by evaluating the zone of flow acceleration that occurs on the left ventricular side of the mitral valve. Direct imaging of pulmonary venous return to the left atrium using transesophageal Doppler echocardiography has also allowed more precise quantification of mitral regurgitation. Left ventricular systolic function may be better quantified in patients with mitral regurgitation by calculating the ratio of the change in pressure to the change in time from the continuous wave spectrum of regurgitant flow. The practical application of transmitral flow.in evaluating diastolic function has been applied to cardiac amyloidosis.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"15-22"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794084","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
Ultrafast computed tomography of the heart. 心脏的超快速计算机断层扫描。
Current opinion in radiology Pub Date : 1992-08-01
E Mousseaux, J C Gaux
{"title":"Ultrafast computed tomography of the heart.","authors":"E Mousseaux,&nbsp;J C Gaux","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Recent cardiovascular morphologic studies focus on direct innovative ultrafast CT applications in detecting coronary calcifications and assessing pericardial diseases. In functional studies, quantitation of regional and global indicators of myocardial function and structure, such as wall thickness or thickening, volume, and mass, can be performed using ultrafast CT and MR imaging with similar approaches. Recent ultrafast CT developments illustrate the fact that cardiac tomographic imaging is evolving rapidly. The production of three-dimensional images from tomography, which is still uncommon, has enhanced resolution and wall motion analysis. Applications will have a major impact on the knowledge of cardiac physiology and the understanding of cardiovascular diseases, if not in daily patient care. Further developments in computer-automated analysis from cardiac ultrafast CT or MR images must be carried out to gain clinical acceptance and to facilitate the routine and consistent measurements of the parameters of cardiac function.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"34-40"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794087","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
Radiologic treatment of abdominal abscesses with fistulous communications. 腹腔脓肿伴瘘道的放射学治疗。
Current opinion in radiology Pub Date : 1992-08-01
G R Wittich
{"title":"Radiologic treatment of abdominal abscesses with fistulous communications.","authors":"G R Wittich","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Although percutaneous radiologic drainage of abdominal abscesses is now a well-established, standard procedure, several factors may limit its success. These limitations include the absence of a safe anatomic access route, presence of fistulous communications, and association with severe inflammation of organs such as the bowel or the pancreas. This review addresses advances and persisting limitations in the percutaneous management of complex abdominal abscesses.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"110-5"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794081","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
Cardiovascular radiology. 心血管放射学。
Current opinion in radiology Pub Date : 1992-08-01
{"title":"Cardiovascular radiology.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"125-51"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794082","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
Magnetic resonance angiography. 磁共振血管造影。
Current opinion in radiology Pub Date : 1992-08-01
A S Gomes
{"title":"Magnetic resonance angiography.","authors":"A S Gomes","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Literature of the past year contains several worthwhile papers describing the application of MR angiography techniques to imaging of the vascular system. MR angiography has been performed with two-dimensional time-of-flight, two-dimensional phase-contrast, and three-dimensional time-of-flight techniques. With current methodology it appears that a variety of MR angiography techniques are necessary to image the various vascular beds of the vascular system, with the appropriate MR angiography technique determined by the velocity and flow characteristics of the vascular bed of interest. Knowledge of the change in velocity patterns in disease states appears necessary for appropriate pulse sequence selection. Signal loss due to higher motion disorders remains problematic; however, the steady progress in MR angiography techniques suggests that these limitations will be overcome. Efforts are also underway to measure the velocity of blood flow. The potential combination of imaging and functional capabilities makes it likely that MR angiography will be an important technique for assessing the vascular system.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"102-9"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794080","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
Advances in pediatric interventional radiology. 儿童介入放射学进展。
Current opinion in radiology Pub Date : 1992-08-01
P Stanley
{"title":"Advances in pediatric interventional radiology.","authors":"P Stanley","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The past year has seen important papers on the risk of acquired immunodeficiency syndrome in the invasive radiology laboratory with emphasis on awareness and prevention. Interventional catheterization techniques in congenital heart disease are reviewed. Valvoplasty of pulmonic stenosis has the greatest success and least complication rate. The majority of complications appear to be at the vascular access site and are more common in neonates and in procedures that are ultimately unsuccessful. Intrauterine valvoplasty of the aortic valve is reviewed as is angioplasty for a recurrent coarctation of the aorta. Closure of a persistent ductus arteriosus with a percutaneously introduced prosthesis and occlusion of congenital coronary artery arteriovenous fistulae with a variety of embolic agents is reviewed. The use of balloon-expandable stents in congenital heart disease is discussed. Traumatic rupture of the aorta, aortic and great vessel involvement in Takayasu's disease, and mucopolysaccharidosis are reviewed along with imaging of congenital anomalies of the aortic arch. The diagnosis of vascular complications of renal transplants is summarized.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"73-8"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12557599","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
Venous imaging and inferior vena cava filters. 静脉显像和下腔静脉滤镜。
Current opinion in radiology Pub Date : 1992-08-01
A C Roberts
{"title":"Venous imaging and inferior vena cava filters.","authors":"A C Roberts","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Thromboembolic disease is a major complication in many hospitalized patients. Imaging of deep venous thrombosis is important for making the diagnosis. After establishing the diagnosis, a decision must be made regarding anticoagulation. If the patient can not be anticoagulated, placement of an inferior vena cava filter is indicated. This paper discusses some of the latest information available on a variety of filters. However, a long-term multicenter study is needed to determine the effectiveness and safety of the available filters. A new approach to percutaneous insertion of central venous catheters is also discussed.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"88-96"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794018","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
Interventional radiology. 介入放射学。
Current opinion in radiology Pub Date : 1992-08-01
{"title":"Interventional radiology.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"151-63"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794085","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
Magnetic resonance imaging of the heart and the great vessels: morphology, function, and perfusion. 心脏和大血管的磁共振成像:形态学、功能和灌注。
Current opinion in radiology Pub Date : 1992-08-01
A C Eichenberger, G K von Schulthess
{"title":"Magnetic resonance imaging of the heart and the great vessels: morphology, function, and perfusion.","authors":"A C Eichenberger,&nbsp;G K von Schulthess","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The capability of MR imaging to evaluate cardiovascular disease is developing faster than ever, as is well documented by the numerous contributions that have been made to the literature during the past year. As the field progresses, MR imaging will probably become one of the preferred investigational methods for the evaluation of cardiac function. The first stage of MR imaging development emphasized replication of commonly used methods for studying morphology and analyzing global ventricular performance. Thus, validated MR imaging methods exist for the assessment of ventricular' volume, ejection fraction, and mean wall stress. More recently, emphasis has been directed toward the evaluation of regional function and perfusion, using novel methods and attracting increasing interest from the cardiovascular research community. Studies reviewed here focus on both clinical results obtained using well-established MR imaging techniques and new results using innovative methods, further extending the usefulness of MR imaging. Topics discussed include congenital and ischemic heart disease and disease of the great vessels. Technical advances in flow and velocity mapping and in the evaluation of ventricular performance are also discussed.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"41-7"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794088","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
Peripheral angiography and angioplasty. 外周血管造影和血管成形术。
Current opinion in radiology Pub Date : 1992-08-01
A M Spijkerboer
{"title":"Peripheral angiography and angioplasty.","authors":"A M Spijkerboer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This paper reviews recent developments in diagnostic and therapeutic interventional procedures for the peripheral arteries reported from February 1991 to January 1992. Topics discussed include endovascular metallic stents, atherectomy catheters, and intravascular ultrasound.</p>","PeriodicalId":77090,"journal":{"name":"Current opinion in radiology","volume":"4 4","pages":"81-7"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12794017","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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