The American journal of roentgenology, radium therapy, and nuclear medicine最新文献

{"title":"Dissecting aneurysm of thoracic aorta: reappraisal of radiologic diagnosis.","authors":"Y Itzchak,&nbsp;T Rosenthal,&nbsp;R Adar,&nbsp;Z J Rubenstein,&nbsp;Y Lieberman,&nbsp;V Deutsch","doi":"10.2214/ajr.125.3.559","DOIUrl":"https://doi.org/10.2214/ajr.125.3.559","url":null,"abstract":"<p><p>In a series of 24 cases of acute dissecting aneurysm of the aorta (not including Marfan's disease) the diagnosis was usually suspected on the basis of the clinical picture and plain chest roentgenograms. The most consistent clinical sign was severe pain. Absent pulses and a neurological deficit were each noted in only five patients. In many cases there was no correlation between the clinical picture and the type or the extent of the dissection. Widening of the aortic arch and obliteration of the aortic knob with displacement of the trachea to the right are the most common signs in plain chest roentgenograms. A barium swallow examination in these cases reveals an elongated compression and displacement of the esophagus by the aortic arch. Calcification in the area of the aortic arch is the exception rather than the rule in dissecting aneurysms. Angiography is essential for the definitive diagnosis of dissecting aneurysms. The diagnosis is based on the demonstration of two channels, either by the presence of a linear radiolucency separating the two lumens, or by differences in flow that present as delayed opacification or delayed washout. If only the true lumen is opacified, widening of the outer extraluminal border of the aorta or narrowing of the lumen indicates the presence of a dissection. Abnormal catheter recoil and position were helpful in only two cases, and are not informative when the false lumen is catheterized. Failure to visualize main aortic branches was not always due to involvement by the dissection. It can also be caused by reduced flow due to severe proximal compression of the main lumen. The exact location of the intimal tears is usually not demonstrated unless additional injections are made in the area assumed to contain the tear. If only the false lumen is opacified in the ascending aorta, this can be recognized by the demonstration of a blind end, by failure to visualize the sinuses of Valsalva, from flattening of the medial border of the opacified channel, and from delayed washout in the blind end.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"559-70"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.559","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12380139","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":"Angiographic features of Cimono-Brescia fistulas.","authors":"J Cöthlin,&nbsp;E Lindstedt","doi":"10.2214/ajr.125.3.582","DOIUrl":"https://doi.org/10.2214/ajr.125.3.582","url":null,"abstract":"<p><p>Forty-four patients with operatively created arteriovenous fistulas have been examined angiographically. Widening of the main arteries of the forearm was evident, the most pronounced widening occurring in the artery feeding the fistula. Stenosis of the arteries or veins seldom influenced the flow significantly. Blood from the fistula was often partly or totally directed into the hand. In nine patients filling of deep veins was evident, and in most of these cases big fistulas were present. A rough estimate of the blood supply to the hand indicated poor supply in eight patients of which only one had symptoms of ischemia. Brachial angiography is of value in estimation of the blood flow in fistulas, when cannulation of veins is difficult, when thrombosis is suspected, or when a new fistula is planned after decreased function of an old one.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"582-90"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.582","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12380141","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":"Radionuclide studies in bronchogenic carcinoma of the Hilum. Scintigraphy and tomography: their complementary features.","authors":"Harumi Ito, Y. Ishii, T. Sakamoto, T. Suzuki, T. Fujita, K. Hamamoto, K. Torizuka","doi":"10.2214/AJR.125.3.640","DOIUrl":"https://doi.org/10.2214/AJR.125.3.640","url":null,"abstract":"Thirty-eight cases with direct or indirect signs of hilar masses were investigated by roentgenologic, radioisotopic and surgical methods. Reasonable correlation between tomography and scintigraphy was confirmed, substantiating their complementary nature. Bronchogenic carcinoma of the central airways was most frequent among the hilar masses. Masses as well as other involvement of the bronchovascular structures of the hilum on conventional tomography were confirmed by the gallium-67 scan, and inhalation and perfusion scintigraphy. Some cases which simulated bronchogenic carcinoma were presented. Hilar masses without destruction of the bronchovascular structures showed normal inhalation and perfusion scintigrams with positive gallium-67 accumulation. These lesions were metastatic cancer, malignant lymphoma, and sarcoidosis. If these diseases involve the airways and the vessels of the hilum, differentiation from bronchogenic carcinoma may naturally be difficult.","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"31 1","pages":"640-50"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78026451","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":"Ileocolonic perforation. A complication following renal transplantation.","authors":"W M Thompson,&nbsp;H F Seigler,&nbsp;R P Rice","doi":"10.2214/ajr.125.3.723","DOIUrl":"https://doi.org/10.2214/ajr.125.3.723","url":null,"abstract":"<p><p>During the decade, February, 1965, through February, 1975, 248 patients underwent renal transplantation at the Duke Medical Center. One hundred twenty-five were living related recipients, while 123 were cadaveric recipients. Eleven patients developed ileocolonic perforation. Six cases were felt to represent non-immunologic etiologies while the remaining 5 were felt to be associated with the allograft response and high dose steroid therapy. Only 3 of the patients survived this complication and in each case the perforation was localized. High dose steroid therapy interferes with prompt diagnosis and severely impairs successful treatment. Radiologists must be familiar with the problem of ileocolonic perforation in patients on steroid therapy, must have a high index of suspicion of the site of perforation, and must recommend and complete water soluble contrast examination for establishment of the diagnosis. Early diagnosis, prompt surgical intervention, and discontinuation of immunosuppressive therapy are recommended.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"723-30"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.723","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12286025","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":"Arteriomegaly.","authors":"D H Carlson,&nbsp;P Gryska,&nbsp;J Seletz,&nbsp;S Armstrong","doi":"10.2214/ajr.125.3.553","DOIUrl":"https://doi.org/10.2214/ajr.125.3.553","url":null,"abstract":"<p><p>Arteriomegaly describes tortuous, ectatic, irregular vessels with prolonged blood flow. Seven cases of this entity are outlined with representative case reports. The increased incidence of aneurysms, thrombosis and embolization is noted in this and other series. The possibility that tortuous vessels may be confused with aneurysms on examination is also discussed. Due to the prolongation of blood flow, adequate arteriographic evaluation may be quite difficult.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"553-8"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.553","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12380138","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":"Peripheral vascular perfusion scanning. Correlation with the arteriogram and clinical assessment in the patient with peripheral vascular disease.","authors":"M E Siegel,&nbsp;F A Giargiana,&nbsp;R I White,&nbsp;B H Friedman,&nbsp;H N Wagner","doi":"10.2214/ajr.125.3.628","DOIUrl":"https://doi.org/10.2214/ajr.125.3.628","url":null,"abstract":"<p><p>Peripheral vascular perfusion scan during rest and reactive hyperemia does not necessarily offer the same information as the arteriogram or the clinical assessment of the peripheral pulses. The information obtained from the peripheral vascular perfusion scan offers potentially clinically useful information regarding the physiologic significance of various arterial lesions to the surgeon in selection of his therapeutic approach. The peripheral vascular perfusion scan uniquely and under varied physiologic conditions permits assessment of the effect of arterial disease on the distribution of perfusion within the extremity. The peripheral vascular perfusion scan is not in competition with, but is complementary to, arteriography and clinical assessment of the patient with peripheral vascular disease.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"628-33"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.628","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12380144","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":"Schwannomas of the central nervous system.","authors":"J Danziger,&nbsp;S Bloch,&nbsp;H Podlas","doi":"10.2214/ajr.125.3.692","DOIUrl":"https://doi.org/10.2214/ajr.125.3.692","url":null,"abstract":"<p><p>Isolated schwannomas may occur in many different situations within the central nervous system. Most neurilemmomas are benign, and enucleation after longitudinal dissection of the nerve will usually affect a cure. It is for this reason that the roentgenological appearances should be appreciated and this diagnosis considered so as to attempt total surgical removal.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"692-701"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.692","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12379987","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":"Roentgenology of sinus of Valsalva aneurysms.","authors":"S H Ominsky,&nbsp;M E Kricun","doi":"10.2214/ajr.125.3.571","DOIUrl":"https://doi.org/10.2214/ajr.125.3.571","url":null,"abstract":"<p><p>Aneurysms of the sinuses of Valsava are neither rare nor always fatal. They are of three types: congenital, acquired, and associated with cystic medial necrosis. Each can be recognized by its characteristic appearance on plain roentgenograms and arteriography. With surgical repair, the congenital type and that which is the result of cystic medial necrosis carry a good prognosis for the patient. With the acquired type, usually syphilitic, the prognosis with conservative management is good.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"571-81"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.571","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12380140","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":"Experience in parathyroid scanning.","authors":"L B Arkles","doi":"10.2214/ajr.125.3.634","DOIUrl":"https://doi.org/10.2214/ajr.125.3.634","url":null,"abstract":"<p><p>In our experience, the low success rate of 75Se parathyroid studies does not justify continuance of the test as a routine diagnostic procedure. The initial results using the 99mTc O4--131I subtraction technique are encouraging but further experience is required in order to ascertain whether this procedure will justify a place as a routine test in the localization of parathyroid adenoma.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"634-9"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.634","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12379979","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":"Roentgenology of sporotrichosis.","authors":"C Comstock,&nbsp;A H Wolson","doi":"10.2214/ajr.125.3.651","DOIUrl":"https://doi.org/10.2214/ajr.125.3.651","url":null,"abstract":"<p><p>Localized cutaneous as well as unifocal and multifocal systemic sporotrichosis may all produce roentgenographic findings. Localized cutaneous nodules may occasionally extend to the bone below producing a locally erosive lesion similar to those more commonly found in blastomycosis. More frequently, sporotrichosis involves the joints, either alone or with accompanying skin nodules. The joint changes are those of a pyogenic arthritis of the knees, elbows, hands, or feet which is difficult to distinguish from pyarthrosis produced by other organisms. The pulmonary findings depend upon whether or not the lung is the only site of infection. If there are no other areas of involvement, the pulmonary findings may be indistinguishable from those of secondary tuberculosis. However, if the skin on joints are also involved, small nodules appear and apparently do not proceed to cavitation.</p>","PeriodicalId":22266,"journal":{"name":"The American journal of roentgenology, radium therapy, and nuclear medicine","volume":"125 3","pages":"651-5"},"PeriodicalIF":0.0,"publicationDate":"1975-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2214/ajr.125.3.651","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12379980","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}