Acta radiologica: diagnosis最新文献_第7页

Tumor vessels and contrast enhancement of hepatocellular carcinoma demonstrated by percutaneous transhepatic portography. Report of a case. 经皮肝门静脉造影显示肝癌的肿瘤血管和造影剂增强。报告一个病例。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700412

I Fujisawa, S Minami, K Tsutsui, T Imura, M Asano, O Kitamura, M Matsumoto, K Ozawa, K Torizuka

引用次数: 1

Effect of motion on the sonographic and magnetic resonance patterns of ageing blood. 运动对老化血液超声和磁共振模式的影响。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700417

A Alanen, P Nummi

{"title":"Effect of motion on the sonographic and magnetic resonance patterns of ageing blood.","authors":"A Alanen, P Nummi","doi":"10.1177/028418518602700417","DOIUrl":"https://doi.org/10.1177/028418518602700417","url":null,"abstract":"The sonographic appearance of a hematoma may be affected by various factors, including the age of the hematoma. The effect of mechanical motion on the echogenicity and histologic appearance, and on the proton relaxation times T1 and T2 of blood clots, was studied in vitro for up to 21 days. All clots were of similar echogenicity and microscopic appearance during the first 2 days. The minimally disturbed clots were sonolucent from day 4 onwards, whereas moderate mechanical disturbance changed the microscopic structure of the blood clots and caused them to retain their echogenicity. Proton relaxation times T1 and T2 of both minimally disturbed and vigorously manipulated blood samples showed a rapid shortening of T1 and a less marked decrease of T2 between days 1 and 4, which was independent of mechanical motion. The ultrasonic appearance reflected the histologic appearance but not necessarily the age of the clot. The magnetic resonance (MR) parameters T1 and to a lesser extent T2 accurately reflected the age of the clot during the first 6 days. Although relatively gentle motion caused a large change in the ultrasonic appearance of the clots, vigorous shaking did not affect the magnetic resonance appearance of human blood clots.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 4","pages":"455-8"},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700417","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14657098","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: 11

Ultrasound examination of foreign bodies. An in vitro investigation. 异物的超声检查。体外研究。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700419

I Suramo, M Pamilo

{"title":"Ultrasound examination of foreign bodies. An in vitro investigation.","authors":"I Suramo, M Pamilo","doi":"10.1177/028418518602700419","DOIUrl":"https://doi.org/10.1177/028418518602700419","url":null,"abstract":"Ultrasound examination of foreign bodies most frequently encountered in the human body was performed when they were contained within a transmission medium acoustically resembling human soft tissues. All the foreign bodies evaluated (lead and plastic pellets, pieces of wire, nails, needles, small fragments of rock and glass, wooden slivers, surgical sponges and surgical threads) were detectable with ultrasound. Strong echoes were reflected from their surface when they were positioned favourably, although in some positions the echoes from a needle, fragment of glass, wooden silver, or surgical thread could not be distinguished from those of the surroundings. Acoustic shadows were also seen behind the foreign bodies. A striking column of reverberation echoes was demonstrated behind lead pellets and nails while behind a glass plate there was an acoustic shadow that was often difficult to detect because it was concealed by a mirror image. With modern grey-scale real-time equipment it is possible to demonstrate objects from various angles, a fact which should facilitate the detection of foreign bodies in vivo circumstances.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 4","pages":"463-6"},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700419","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14657100","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: 17

Angiography of histopathologic variants of synovial sarcoma. 滑膜肉瘤组织病理变异的血管造影。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700416

J F Lois, H J Fischer, J M Mirra, A S Gomes

引用次数: 6

Relationships between coronary artery obstruction, asynergy, presence of collaterals and the ejection fraction of the left ventricle in patients with coronary heart disease. 冠心病患者冠状动脉阻塞、无能性、侧枝存在与左心室射血分数的关系

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700408

C Backman, A Billström, M Ericsson, K A Jacobsson, O Johnson, H Linderholm, G Osterman

{"title":"Relationships between coronary artery obstruction, asynergy, presence of collaterals and the ejection fraction of the left ventricle in patients with coronary heart disease.","authors":"C Backman, A Billström, M Ericsson, K A Jacobsson, O Johnson, H Linderholm, G Osterman","doi":"10.1177/028418518602700408","DOIUrl":"https://doi.org/10.1177/028418518602700408","url":null,"abstract":"Cardioangiographic scores of coronary artery obstructions and corresponding myocardial involvement (MCOS), presence of collaterals (CollS), and asynergy of the left ventricular wall (LVMS) as well as the left ventricular ejection fraction (EF) were examined in 67 patients with coronary heart disease. A covariation was found between LVMS, EF, ECG changes, and a history indicating a previous myocardial infarction (MI). In a multiple regression analysis the EF covariated with LVMS but not with MCOS and CollS. LVMS indicated a previous MI with at least the same sensitivity and specificity as EF. MCOS and CollS give additional information. Collaterals as well as a high MCOS in relation to the LVMS indicate obstruction of coronary arteries which subserve 'non-fibrotic' myocardium. A patient with a high MCOS and CollS and a low LVMS should be expected to gain most functional improvement from coronary bypass surgery. The scores MCOS, CollS and LVMS are comparatively easy to determine and give a more diversified picture of the state of the myocardium than the EF alone.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 4","pages":"413-8"},"PeriodicalIF":0.0,"publicationDate":"1986-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700408","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14894931","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: 4

Anatomic variants of the hepatic arteries. 肝动脉的解剖变异。

Acta radiologica: diagnosis Pub Date : 1986-07-01 DOI: 10.1177/028418518602700411

H Rygaard, M Forrest, T Mygind, H Baden

引用次数: 54

Computed tomography of the knee with reference to meniscal tears. A prospective blind investigation. 参考半月板撕裂的膝关节计算机断层扫描。前瞻性盲法调查。

Acta radiologica: diagnosis Pub Date : 1986-05-01 DOI: 10.1177/028418518602700315

A G Jurik, J Jørgensen, O Helmig, A de Carvalho

引用次数: 1

Computed tomographic angiography of the liver via the coeliac axis. 经腹腔轴的肝脏计算机断层血管造影。

Acta radiologica: diagnosis Pub Date : 1986-05-01 DOI: 10.1177/028418518602700306

C Lundstedt, S Götberg, A Lunderquist, H Stridbeck, H Ekberg

引用次数: 14

Computed tomography of pelvic lipomatosis. Report of a case. 盆腔脂肪瘤病的计算机断层扫描。报告一个病例。

Acta radiologica: diagnosis Pub Date : 1986-05-01 DOI: 10.1177/028418518602700311

L Bååth, U Nyman, P Aspelin, L Wadström

引用次数: 6

The topographic relations of the high jugular fossa to the inner ear. A radioanatomic investigation. 颈高窝与内耳的地形关系。放射解剖学研究。

Acta radiologica: diagnosis Pub Date : 1986-05-01 DOI: 10.1177/028418518602700312

K Wadin, H Wilbrand

{"title":"The topographic relations of the high jugular fossa to the inner ear. A radioanatomic investigation.","authors":"K Wadin, H Wilbrand","doi":"10.1177/028418518602700312","DOIUrl":"https://doi.org/10.1177/028418518602700312","url":null,"abstract":"The radioanatomy of high jugular fossae and their topographic relations to the inner ear structures were investigated in 245 unselected temporal bones. One hundred and fifty specimens were submitted to multidirectional and 10 to computed tomography. After careful chemical and fermentative maceration plastic casts were made, using polyester resin and silicone rubber. With the use of vacuum, even minute structures became filled with the casting material. The specimens offered a three-dimensional view of the jugular fossae and surrounding structures. Fifty-eight (24%) of the total 245 specimens had high jugular fossae at a level above the lower border of the round window. Five casts showed a dehiscence of the peripheral portion of the vestibular aqueduct caused by the high jugular fossa. In 2 casts the proximal portion of the cochlear aqueduct was affected. In some casts the posterior semicircular canal, the facial canal, the stapedial muscle and the round window lay so close to the fossa that a dehiscence could not be excluded. In a clinical material of 102 high fossae the radiographic findings were in accordance with the experimental results. High jugular fossae were predominantly found in pyramids with low-grade mastoid bone pneumatization and sparse or no perilabyrinthine air cells.","PeriodicalId":7142,"journal":{"name":"Acta radiologica: diagnosis","volume":"27 3","pages":"315-24"},"PeriodicalIF":0.0,"publicationDate":"1986-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/028418518602700312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14871094","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: 52