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American journal of physiologic imaging最新文献

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Physiological considerations in imaging liver metastases from colorectal carcinoma. 结直肠癌肝转移影像学的生理考虑。
American journal of physiologic imaging Pub Date : 1991-07-01
T K Chaudhuri, S Fink
{"title":"Physiological considerations in imaging liver metastases from colorectal carcinoma.","authors":"T K Chaudhuri,&nbsp;S Fink","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Approximately 150,000 new cases of colorectal cancer are discovered annually in the United States; 20,000 of these, or 15%, are potentially resectable for cure by current surgical criteria. Knowledge of the presence or absence of hepatic metastases from colorectal cancer is critical to the application of these criteria. This knowledge is also important during the follow-up period. We discuss the pathophysiology of these lesions and current diagnostic approaches.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 3","pages":"150-60"},"PeriodicalIF":0.0,"publicationDate":"1991-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12936461","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
Aortic root dimension measurement by first-pass radionuclide angiography. 首次放射性核素血管造影测量主动脉根部尺寸。
American journal of physiologic imaging Pub Date : 1991-07-01
L R Martins, M Simons, G M Kolodny, J A Parker, S E Warren
{"title":"Aortic root dimension measurement by first-pass radionuclide angiography.","authors":"L R Martins,&nbsp;M Simons,&nbsp;G M Kolodny,&nbsp;J A Parker,&nbsp;S E Warren","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A method for measuring the ascending aortic cross-sectional dimension is reported. First-pass radionuclide angiocardiography was performed in 53 patients with various cardiac diseases. The number of pixels from superior vena cava/right atrium junction to the main pulmonary artery were counted horizontally and converted to distance in centimeters. Aortic root size was also measured in these patients by M-mode echocardiography performed within 6 months of the radionuclide study. The two methods were compared by regression analysis. The correlation coefficient between the methods was 0.76, and the standard deviation of the regression was 0.23 cm. This radionuclide method has an accuracy which can be clinically useful for size assessment of the ascending aorta.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 3","pages":"116-20"},"PeriodicalIF":0.0,"publicationDate":"1991-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12936451","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
Aortic root dimension measurement by first-pass radionuclide angiography. 首次放射性核素血管造影测量主动脉根部尺寸。
American journal of physiologic imaging Pub Date : 1991-04-01 DOI: 10.1097/00003072-199104000-00029
L. R. Martins, M. Simons, G. Kolodny, J. Parker, S. Warren
{"title":"Aortic root dimension measurement by first-pass radionuclide angiography.","authors":"L. R. Martins, M. Simons, G. Kolodny, J. Parker, S. Warren","doi":"10.1097/00003072-199104000-00029","DOIUrl":"https://doi.org/10.1097/00003072-199104000-00029","url":null,"abstract":"A method for measuring the ascending aortic cross-sectional dimension is reported. First-pass radionuclide angiocardiography was performed in 53 patients with various cardiac diseases. The number of pixels from superior vena cava/right atrium junction to the main pulmonary artery were counted horizontally and converted to distance in centimeters. Aortic root size was also measured in these patients by M-mode echocardiography performed within 6 months of the radionuclide study. The two methods were compared by regression analysis. The correlation coefficient between the methods was 0.76, and the standard deviation of the regression was 0.23 cm. This radionuclide method has an accuracy which can be clinically useful for size assessment of the ascending aorta.","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 3 1","pages":"116-20"},"PeriodicalIF":0.0,"publicationDate":"1991-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/00003072-199104000-00029","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61447527","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: 2
Effect of simultaneous Tc-99m diethyl-IDA and sulfobromophthalein administration on liver excretory function in rats. 同时给药Tc-99m二乙基ida和磺溴眼啡对大鼠肝脏排泄功能的影响。
American journal of physiologic imaging Pub Date : 1991-01-01
B Milutinović, F Dujmović, J Malesević
{"title":"Effect of simultaneous Tc-99m diethyl-IDA and sulfobromophthalein administration on liver excretory function in rats.","authors":"B Milutinović,&nbsp;F Dujmović,&nbsp;J Malesević","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Competition of diethyl-IDA and BSP during their synchronous passage through the liver was examined on an animal model. Rats were divided in three groups, according to the amount of diethyl-IDA or BSP administered. No significant influence of diethyl-IDA on the liver uptake of BSP was noticed compared to the controls, while BSP demonstrated a significant inhibitory effect on diethyl-IDA plasma-activity decrease. On the biliary pole of hepatocyte, a reciprocal inhibitory influence of both compounds was present, with significantly diminished biliary excretion of both BSP and diethyl-IDA. As the input of BSP was not decreased, there evidently appeared a storage of BSP within the liver. A mathematical model of both plasma and bile changes of the concentration (or activity) of these compounds was also proposed. For the vascular compartment the model is correct, while biliary excretion of diethyl-IDA is significantly changed in presence of BSP and the satisfactory fit cannot be easily obtained.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 1","pages":"50-6"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13196475","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
Naturally occurring animal models of the acquired immune deficiency syndrome (AIDS). 获得性免疫缺陷综合征(艾滋病)的自然动物模型。
American journal of physiologic imaging Pub Date : 1991-01-01
N L Letvin, N W King
{"title":"Naturally occurring animal models of the acquired immune deficiency syndrome (AIDS).","authors":"N L Letvin,&nbsp;N W King","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 1","pages":"1-15"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12811702","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
An ectopic rim sign in hepatobiliary scintigraphy. 肝胆造影中的异位征象。
American journal of physiologic imaging Pub Date : 1991-01-01
T M Haygood, R L Olander, D Mosdell, B Eisenberg
{"title":"An ectopic rim sign in hepatobiliary scintigraphy.","authors":"T M Haygood,&nbsp;R L Olander,&nbsp;D Mosdell,&nbsp;B Eisenberg","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A 59-year-old man with gangrenous cholecystitis is presented along with an hepatobiliary scan that demonstrated nonvisualization of the gallbladder and a curvilinear area of increased activity in the region of the fissure for the ligamentum teres or common hepatic duct. There was no \"rim sign\" in the gallbladder fossa. We propose that perforation of the gallbladder and resultant pockets of pus may, through edematous compression of liver parenchyma, produce an ectopic rim sign if inflammation comes in contact with another portion of the liver.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 2","pages":"62-4"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13028192","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
Discordance of visual and quantitative analysis regarding false negative and false positive test results in thallium-201 myocardial perfusion scintigraphy. 铊-201心肌灌注显像假阴性与假阳性检测结果视觉与定量分析的不一致。
American journal of physiologic imaging Pub Date : 1991-01-01
M G Niemeyer, E E Van der Wall, A F Kuyper, M J Cramer, J F Verzijlbergen, A H Zwinderman, C A Ascoop, E K Pauwels
{"title":"Discordance of visual and quantitative analysis regarding false negative and false positive test results in thallium-201 myocardial perfusion scintigraphy.","authors":"M G Niemeyer,&nbsp;E E Van der Wall,&nbsp;A F Kuyper,&nbsp;M J Cramer,&nbsp;J F Verzijlbergen,&nbsp;A H Zwinderman,&nbsp;C A Ascoop,&nbsp;E K Pauwels","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Visual assessment and quantitative analysis of exercise thallium-201 myocardial perfusion scintigraphy was performed in 203 consecutive patients who underwent coronary arteriographic studies to identify the factors associated with false negative and false positive studies. Also the discordance between visual and quantitative analysis was evaluated. One hundred sixty-two (80%) of these 203 patients had significant coronary artery disease (CAD), i.e. a luminal stenosis greater than or equal to 50%. Fifty-two (32%) of these 162 patients with documented CAD showed negative thallium results either by visual or quantitative analysis. When interpreted visually 36/162 (22%) of patients were judged as negative, and when analyzed quantitatively 41/162 (25%) of patients were judged as negative (ns). Of the total group of 52 patients with false negative visual and/or quantitative analysis test results, 27 (17%) showed discordance between these two methods. Of the 41 patients without significant CAD, 12 (29%) showed positive thallium findings. Visual interpretation was positive in 9/41 (22%) of patients without significant CAD, and quantitative analysis in 5/41 (12%) (ns). Of the total group of 12 patients with positive visual and/or quantitative analysis test results, 10 (24%) showed discordance between these two methods. Therefore, in the total group, 37 patients (18%) showed discordance between visual and quantitative analysis. It is concluded that 1) the sensitivity and the specificity of visual interpretation and quantitative analysis of thallium-201 exercise scintigraphy for detecting CAD is similar, and 2) that there is frequent discordance of visual interpretation and quantitative analysis in thallium-201 exercise scintigraphy.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 1","pages":"34-43"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13196472","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
Color Doppler sonography in hepatocellular carcinoma. 彩色多普勒超声在肝细胞癌中的应用。
American journal of physiologic imaging Pub Date : 1991-01-01
P W Ralls, M B Johnson, K P Lee, D R Radin, J Halls
{"title":"Color Doppler sonography in hepatocellular carcinoma.","authors":"P W Ralls,&nbsp;M B Johnson,&nbsp;K P Lee,&nbsp;D R Radin,&nbsp;J Halls","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Sixteen patients with hepatocellular carcinoma (HCC) were assessed with color Doppler sonography (CDS) for flow compared to normal hepatic parenchyma. Nine showed moderate increased flow, and two revealed marked increased flow. In most instances, the increased flow was peripheral. Color Doppler was also useful in assessing seven patients with portal vein invasion. In two instances, venous invasion was not detected on preliminary grayscale images. In another patient, hepatic venous invasion was suspected on grayscale images, but was shown to represent extrinsic compression only by color Doppler.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 2","pages":"57-61"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12816938","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
Bone scans in sternal osteomyelitis complicating hemodialysis blood access. 胸骨骨髓炎并发血液透析血液通路的骨扫描。
American journal of physiologic imaging Pub Date : 1991-01-01
B Eisenberg, G Murphy, A H Tzamaloukas
{"title":"Bone scans in sternal osteomyelitis complicating hemodialysis blood access.","authors":"B Eisenberg,&nbsp;G Murphy,&nbsp;A H Tzamaloukas","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Sternal osteomyelitis complicating infection of vascular access for hemodialysis is exceedingly rare and presents serious diagnostic and therapeutic difficulties. Two hemodialysis patients with sternal osteomyelitis following vascular access infection are reported. Factors favoring sternal location of the infection included previous chest trauma in the first patient and difficult insertion of a dialysis subclavian catheter in the second patient. Indium oxine, gallium, and three-way bone scans were instrumental in establishing diagnosis and in documenting cure by prolonged antibiotic courses. Sternal scans should be performed in dialysis patients with vascular access infections and signs of sternal disease.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 1","pages":"26-8"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13195880","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
The effect of fluid resuscitation on cardiac function changes monitored by radionuclide ventriculography in the septic shock baboon model. 液体复苏对感染性休克狒狒模型心功能变化的影响。
American journal of physiologic imaging Pub Date : 1991-01-01
I C Dormehl, J Kilian, J P Pretorius, A L van Gelder, N Hugo
{"title":"The effect of fluid resuscitation on cardiac function changes monitored by radionuclide ventriculography in the septic shock baboon model.","authors":"I C Dormehl,&nbsp;J Kilian,&nbsp;J P Pretorius,&nbsp;A L van Gelder,&nbsp;N Hugo","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Dramatic cardiac volume losses accompanied by a drop in arterial pressure and in pulmonary capillary wedge pressure (PCWP) were found to characterise the baboon model in bacterial septic shock. Loss of vascular tone and a probable vascular fluid leak were regarded as contributing factors. To prove this hypothesis an experiment was planned with the baboon model in septic shock, and an added protocol for fluid administration whereby the pulmonary wedge pressure was kept at 7 +/- 2 mm Hg. The six baboons served as their own controls. Raising PCWP by means of fluid loading resulted in an attenuation of the drop in left ventricular volumes, to a smaller decrease in stroke volume (SV) and smaller increases in left ventricular ejection fraction. The drop in arterial pressure remained and left ventricular stroke work therefore reflected the decrease in SV. Compliance as by EDV/PCWP remained unchanged. Fluid loading therefore, although not normalising the haemodynamic parameters, led to smaller changes and an improvement in some measures of cardiac function.</p>","PeriodicalId":76992,"journal":{"name":"American journal of physiologic imaging","volume":"6 1","pages":"29-33"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13195881","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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