摘要:

SUMMARYForty‐seven patients presenting with acute intracerebral haematomas between 1989 and 1992 were retrospectively examined to assess the role of Magnetic Resonance Imaging (MRI) in identifying any underlying lesion. None had any prior known intracerebral pathology. Magnetic resonance imaging scans were done on a 0.5 T unit.Ten patients with an average age of 35 years had angiographically occult vascular malformations (AOVM) found by MRI (one with biopsy confirmation). One of three cases of glioma, three of three cases with secondary tumour, one case of superior sagittal sinus thrombosis with haemorrhagic infarction, one of two cases of venous angioma and one case of arteriovenous malformation were detected by MRI.Progress computed tomography scans discovered two cases of glioma and angiography found a venous angioma and an arterial aneurysm, all undetected by MRI.It is concluded that MRI scanning is helpful in detecting underlying AOVM as a cause of intracerebral haemorrhage but its role in imaging haemorrhagic tumours remains unclea

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00086.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

SUMMARYA prospective trial, comparing filling of the ureters on routine urography with ureteric filling following a valsalva manoeuvre, was performed. A significantly greater length of ureter was filled by the study patients than controls, allowing this frequently poorly imaged structure to be visualized more consistently.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00087.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

SUMMARYPopliteal venous aneurysms are rare and usually manifest with formation of thrombus and embolization to the lungs. The radiological features of a popliteal venous aneurysm, without thrombus, initially identified by ultrasound with colour Doppler imaging and further investigated with retrograde venography is described.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00088.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

SUMMARYThis retrospective study was undertaken to assess the role of ultrasound (US) and to compare it with endoscopic retrograde cholangiopancreatography (ERCP) and percutaneous transhepatic cholangiography (PTC) in the evaluation of post‐operative common bile duct (CBD) strictures. Seventy‐four patients with postoperative CBD strictures were evaluated by ERCP and/or PTC. Of these, US scans were available in 52 patients. Ultrasound findings of CBD strictures were: proximal dilatation of CBD with smooth tapering stenosis (41%); abrupt cut off of CBD (18%); and echogenic nodule, without acoustic shadowing, in 16%. Of the remainder, mild proximal dilatation of the CBD was seen in 6%, and 19% of the patients had normal US sc

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00089.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

SUMMARYFollowing unsuccessful conventional antegrade transfemoral angioplasty (six occlusions, one stenosis) seven patients underwent retrograde transpopliteal catheterization to retrieve the situation. The procedure was successful in five patients. The other two patients had small calibre popliteal arteries that went into spasm on attempted puncture. Provided the popliteal artery is of adequate calibre, the procedure is a relatively straightforward technique recommended for retrieval of failed antegrade angioplasty.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00090.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

SUMMARYTenting of the diaphragm (Katten's sign) is a common finding in upper lobe collapse or where there is loss of volume. Twenty‐nine patients have been studied, 12 of these prospectively following upper lobectomy. Division of the inferior pulmonary ligament was carried out in these 12 patients. The computed tomography findings confirm that this sign is due to an accessory oblique fissur

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00091.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

SUMMARYRadiology can be more interesting if the principles of decision making are understood and used to the advantage of the radiologist, referring clinician and patient. This article seeks to revise the principles that radiologists use intuitively.Particular emphasis is placed on the importance of the pre‐test probability, as it can be shown to: (i) vary with the referral pool of patients; (ii) be a major determinant of the amount of additional information gained from the test; (iii) alter the sensitivity and specificity of the test; and (iv) determine largely the significance of a positive or negative test result.An investigation helps a clinician by providing information that will move the probability of disease above an action threshold or below its exclusion threshold. If this does not occur as a result of one study, another is selected. This article also describes the factors involved in such a decision tree analysis, as well as discussing the reasons for both selecting a particular examination and deciding when a test should not be performe

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00092.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00093.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

SUMMARYIn this article the current applications of endoscopic ultrasound in the upper gastrointestinal tract and its adnexa, as well as the areas of likely development, are reviewed. Illustrative cases are shown from the author's experience. Pitfalls and limitations of the technique are also discussed.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00094.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1993.tb00095.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY