ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00277.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYThis paper highlights the contributions of certain individuals working in Australia to the development of neuroradiology.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00278.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYIn 1950, orthovoltage X‐rays were used to treat a wide spectrum of malignant disease but results were impaired by poor depth dose and significant reactions; radium and radon were used commonly and superficial X‐ray therapy was used for a large number of skin cancers as well as many benign skin conditions. Since megavoltage X‐ray therapy was introduced to Australia and with earlier diagnosis, high standards for qualification as a radiation oncologist set by the Royal Australasian College of Radiologists (RACR), improved imaging and tumour localization, improved beam characteristics, computerization and dosimetry, patients are now better treated with improved local control and less morbidity. Public facilities have been chronically underfunded by governments resulting in waiting lists for treatment, and free standing private practices are important in sharing the ever increasing workload consequent to the increasing and ageing population. The use of brachytherapy has fallen but is enjoying a resurgence of interest. Chemotherapy has emerged. Radiobiology has had some influence on radiation treatment. Health education has improved and the needs and expectations of patients better appreciated and helped. Cancer societies have made an important contribution. Statistical evaluation of treatment is better understood. Undergraduate training and academic positions remain insufficient. The formation of the Faculty of Radiation Oncology of the RACR has given fresh impetus to the spec

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00279.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYDifferences in size and shape of ischiopubic synchondrosis in childhood may present problems in diagnosis and differential diagnosis. Whereas asymptomatic swollen ischiopubic synchondrosis represents a normal ossification process, painful swelling is a symptom of underlying pathology. Five children are described with symptomatic ischiopubic synchondrosis swelling, four representing stress reaction and one with osteomyelitis. Radiologists should be careful when reporting on swollen ischiopubic synchondrosis in symptomatic children.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00280.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYThe magnetic resonance imaging (MRI) characteristics of 14 intraspinal nerve sheath tumours (NST) presenting with sciatica were reviewed. The group comprised seven schwannomas, six neurofibromas and one perineuroma. The tumours were either iso‐ or hypointense with respect to spinal cord on T1‐weighted (T1W) images; almost all tumours were hyperintense compared with spinal cord on T2‐weighted (T2W) images. The tumours were all detectable on unenhanced T1W images. Nine NST were scanned following Gadolinium‐Diethylenetriamine penta acetic acid (DTPA) injection and all showed intense enhancement. This aids differentiation from sequestrated disc fragments. Tumours were more likely to show homogeneous enhancement unless they were recurrent tumours. Rim enhancement occurs more commonly in schwannomas and this can be used to differentiate these from neurofibromas. However, on unenhanced images, schwannomas cannot be distinguished from neurofibromas. Four tumours occurred at T11‐T12. There was poor correlation of the site of the lesion with the clinical findings. MRI studies in patients with sciatica should include the lower thoracic region especially if no protruded disc was found in the lumb

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00281.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYThis is a retrospective clinical follow‐up study of 45 consecutive patients who had percutaneous placement of inferior venal caval (IVC) filters in the period 1987 to 1993 to prevent mortality, or severe morbidity, from pulmonary embolism (PE). Ten patients had Gunther filters (GF) and 35 had bird's nest filters (BNF) from 1989. Clinical indications for filter placement were: 23 patients with anticoagulation contraindications, six with anticoagulation failure and recurrent PE, 10 with anticoagulation complications, two with critical PE and four with leg thrombi and PE. Two patients died from recurrent PE after filter placement, one with a GF migrating after replacement, and one with a BNF. Two patients died from severe PE, occurring prior to filter placement. Fifteen patients died in the study period, none due to recurrent PE. Twenty‐five patients remain alive, with a mean follow‐up period of 21 months, with none having recurring PE. One patient was lost to clinical follow‐up. One patient suffered technical difficulty in BNF placement, and underwent surgical removal of a hook penetrating an iliac vein wall. Inferior vena caval filters are efficacious in preventing potentially fatal pulmonary embolism, in both the acute period and the medium term. There are low rates of morbidity associated with th

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00282.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYOver 15 000 children are born each year as a result of the various techniques of assisted conception. In 1991, there were 2083 live births in Australia and New Zealand as a result of these techniques. Radiological abnormalities relating to the increased rate of prematurity, a probable increase in the risk of congenital malformations and a number of cases of neural crest tumours seen in these infants will be presented.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00283.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYTransluminal angioplasty can be used to relieve symptomatic lower extremity arterial disease with minimal morbidity. This prospective study compares the accuracy of colour‐coded duplex ultrasonography with intra‐arterial digital subtraction angiography in selection of femoro‐popliteal lesions for angioplasty. Isolated, short (50% reduction in diameter) were considered for angioplasty. Colour‐duplex selection and exclusion was in agreement with angiography in 68 out of 86 lower limbs (79%). The sensitivity, specificity, positive and negative predictive value of colour duplex compared with angiography yielded values of 60.9, 87.5, 60.9 and 85.7%, respectively. The discrepancy between colour duplex and digital subtraction angiography can be partly explained by the tendency of duplex to underestimate the severity and length of disease. It is concluded that colour‐coded duplex can be used as a screening tool for lower extremity arterial disease to select appropriate lesions for endovascular procedures. The accuracy of duplex in the present study was not perfect and the decision for further intervention should be based on clinica

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00284.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYTwo cases of unilateral proptosis due to orbital hydatid cysts were evaluated by ultrasound and computed tomography. Image morphology of this rare disease is presented.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00285.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY

摘要:

SUMMARYThe imaging appearances of three patients with variable clinical presentations of dissecting neuropathic joints are described. Plain radiographs demonstrated bony debris within the soft tissues adjacent to and distant from neuropathic joints. Computed tomography combined with arthrography confirmed that the soft tissue bony debris communicated with the joints.

ISSN:0004-8461    

DOI:10.1111/j.1440-1673.1995.tb00286.x

出版商:Blackwell Publishing Ltd    

年代:1995

数据来源: WILEY