CRC critical reviews in diagnostic imaging最新文献_第2页

Roentgenological appearance of lesions of the larynx. 喉部病变的x线表现。

CRC critical reviews in diagnostic imaging Pub Date : 1979-10-01

P S Ferro, L B North

引用次数: 0

Radiologic demonstration of anomalous pulmonary venous connection and its clinical significance. 肺静脉连接异常的影像学表现及其临床意义。

CRC critical reviews in diagnostic imaging Pub Date : 1979-10-01

J T Chen

{"title":"Radiologic demonstration of anomalous pulmonary venous connection and its clinical significance.","authors":"J T Chen","doi":"","DOIUrl":"","url":null,"abstract":"1. As surgical techniques continue to improve, early diagnosis and early surgical intervention of APVCs become increasingly important. 2. For a thorough understanding of APVCs, normal development of the pulmonary veins and the embryological basis of these anomalies are briefly reviewed. 3. Radiologic signs and clinical implications of varying types of APVCs are illustrated. 4. TAPVCs are less frequent, but clinically more significant, than PAPVCs. 5. The symptomatology of TAPVC is directly related to (1) the degree of pulmonary venous obstruction, (2) the severity of CHF secondary to volume overload, and (3) the magnitude of pulmonary hypertension. Patients with PAPVC become symptomatic only when the left to right shunt is greater than 50%9 6. TAPVC to the LVV produces a pretracheal density on the lateral view prior to the appearance of snowman configuration on the postero-anterior view. TAPVC to the PV shows a combination of severe pulmonary edema and a normal-sized heart. 7. PAPVC may be diagnosed by visualization of the anomalous vein(s) in addition to the usual signs of an ASD (increased pulmonary blood flow plus right-sided cardiomegaly). 8. PAPVC is usually associated with an ASD. Scimitar syndrome is an exception to the rule. 9. The surgical repair of TAPV without obstruction is generally relatively simple because of the strong tendency for all of the pulmonary veins to converage into a common chamger. Emergency operation is the only hope for patients with TAPVC with obstruction. 10. The surgical treatment of PAPVC consists of reconstruction of the atrial septum; thus, the anomalous veins can be diverted into the left atrium. 11. Surgical correction of PAPVC prevents detrimental resection of the lung with normal pulmonary venous connection.","PeriodicalId":75748,"journal":{"name":"CRC critical reviews in diagnostic imaging","volume":"11 4","pages":"383-422"},"PeriodicalIF":0.0,"publicationDate":"1979-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11598550","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

Cardiac blood pool imaging: a review. 心脏血池成像:综述。

CRC critical reviews in diagnostic imaging Pub Date : 1979-01-01

D L Yuille

{"title":"Cardiac blood pool imaging: a review.","authors":"D L Yuille","doi":"","DOIUrl":"","url":null,"abstract":"The field of cardiac blood pool imaging has been reviewed. The radioisotopes and radiopharmaceuticals used for this purpose have been discussed. Data related to the radiation exposure from these agents were presented and compared with the radiation exposure of a conventional contrast angiogram. Application of cardiac blood pool imaging to the qualitative evaluation of pericardial effusions, cogenital heart disease, acquired heart disease, and cardiac shunts have been discussed. Quantitative methods for measuring cardiac output, stroke volume, left ventricle ejection fraction, left ventricle end-diastolic volume, percent mitral valve regurgitation, and Qp:Qs flow ratios in both right-to-left and left-to-right shunts were presented in detail. Where possible, correlation with contrast angiographic findings was given. Newly developed techniques of ECG gating of cardiac images were also described in detail. This description has included applications of these techniques for evaluation of regions of myocardial dyskinesis and to quantitation of left ventricle diastolic volume, ejection fraction, time between ejection onset and peak systolic flow, ejection duration, and peak circumferential fiber shortening. Once again, these were correlated with contrast angiography where possible. It is concluded that cardiac blood pool imaging is a useful procedure capable of yielding good qualitative and quantitative results in a wide variety of clinical cardiac diseases and that these results compare favorably with those obtained by contrast angiography. Although there are limitations in the present techniques, solutions to at least some of these limitations are possible. Because of its simplicity, safety, and low cost relative to cardiac catheterization, more widespread use of these procedures is urged.","PeriodicalId":75748,"journal":{"name":"CRC critical reviews in diagnostic imaging","volume":"11 3","pages":"223-60"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11590918","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}

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Current status of mammography. 乳房x光检查的现状。

CRC critical reviews in diagnostic imaging Pub Date : 1979-01-01

J E Crymes

引用次数: 0

The differential diagnosis of the unilateral small kidney. 单侧小肾的鉴别诊断。

CRC critical reviews in diagnostic imaging Pub Date : 1979-01-01

G Morillo

引用次数: 0

Ionizing radiation and human breast cancer. 电离辐射和人类乳腺癌

CRC critical reviews in diagnostic imaging Pub Date : 1978-01-01

S A Feig