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At least 163 records · Page 9Linked to original sources
PubMed1991

Technical report: evacuating proctography--a simplified technique.

We describe a prospective study of 63 patients with proctological symptoms, comparing the radiological findings when performing evaluating proctography in both the sitting and left lateral positions. We found that although the left lateral method was slightly less sensitive, the abnormalities missed represented only minor early changes and were of no clinical significance. We conclude that the technique we have described could be adopted easily as a screening procedure for patients with unexplained anorectal symptoms.

Adolescent↗
PubMed1992

Technical report: the post-micturition CT scan as an aid to staging bladder cancer.

The accurate staging of bladder cancer by computed tomography (CT) can be hampered where a bowel loop lies in close proximity to a tumour and the resolution of the system is such that a clearly defined fat plane between tumour and bowel is not visible. This paper describes the use of post-micturition scanning in a case where bowel involvement by tumour was suspected on the initial scans but was subsequently shown to be absent on the post-micturition scans. This technique has the potential, in selected cases, to reduce a CT staging from T4 to T3 or less.

Carcinoma, Transitional Cell↗
PubMed1994

Technical report: use of a 3 French catheter for transbrachial evaluation of surgically-created arteriovenous fistulae in dialysis patients.

Surgically-created arteriovenous fistulae (SCAVF) are widely used for the management of patients with chronic renal failure. Satisfactory function of the SCAVF is essential for adequate haemodialysis. Complications, although relatively uncommon, may occur and assessment of the SCAVF is essential before surgical revision of the fistula, thrombolysis or percutaneous transluminal angioplasty can be undertaken. Numerous arteriographic methods for evaluating SCAVF in the arm have been reported. We describe a new method involving percutaneous retrograde catheterization of the brachial artery proximal to the SCAVF with a commercially available 3 F intra-arterial digital subtraction angiography catheter set (Cook [UK] Limited).

Angiography, Digital Subtraction↗
PubMed1994

Technical report: Hickman catheter rescue.

Nineteen malfunctioning or incorrectly positioned Hickman catheters from a series of 320 catheter placements were referred to the radiology department for salvage. Successful catheter 'rescue' was achieved on 14 occasions (73.6%). Eight catheters were repositioned, five were replaced and thrombolysis was successful in a patient with subclavian vein thrombosis. Catheter repositioning techniques are reviewed and a new technique for catheter replacement using the existing venous access and subcutaneous tunnel is described.

Adolescent↗
PubMed1997

Technical report: an alternative mechanical technique of pseudoaneurysm compression therapy.

Graded manual compression therapy under ultrasound guidance has become the standard first line treatment of post-catheterization femoral pseudoaneurysms. Although effective, this treatment is often poorly tolerated by both patient and operator. We describe a new mechanical technique which has proven successful in our department, and is well tolerated by both patients and staff.

Aged↗
PubMed1998

Technical report: The introduction of a new synchronized oesophageal manometry and digital video-fluoroscopy (fluoromanometry) system into the radiology suite.

Following the development of a new fluoromanometry system enabling synchronous oesophageal manometry and barium swallow video-fluoroscopy, both the equipment and examination method have been successfully introduced into the radiology suite. The application of the system which uses a PC with video capture and a portable manometry recorder is described together with details of its implementation and the examination technique used.

Barium↗
PubMed1998

Technical report: Cystic air spaces in the lung: change in size on expiratory high-resolution CT in 23 patients.

PURPOSE: To determine the presence of change in size of air-filled cysts in the lung on expiration by comparison between inspiratory and expiratory high-resolution computed tomography (CT) scans. MATERIALS AND METHODS: Inspiratory and expiratory high-resolution (1-mm collimation) CT scans were obtained in 23 patients with lung cysts due to a variety of lung diseases. The 23 patients had a total of 27 types of cystic lesions including bullae (n=7), honeycomb cysts due to fibrosing alveolitis (n=11), lymphangioleiomyomatosis (LAM, n=2), cystic adenomatoid malformation (n=1), and bronchiectasis (n=6). An adequate expiratory effort, with at least 5% decrease in the anteroposterior or transverse thoracic diameter, was required for inclusion in the study. Inspiratory and expiratory scans at corresponding anatomic levels were compared to determine any change in size of the cysts on expiration. RESULTS: Cystic lesions due to bronchiectasis, LAM and fibrosing alveolitis decreased in size on expiratory CT. In six of seven cases bullae decreased in size, and in one patient with a single bulla it remained unchanged. In one case a single cyst due to cystic adenomatoid malformation increased in size on expiration. CONCLUSION: The majority of lung cysts decrease in size on expiration suggesting that they communicate with the airways.

Adult↗
PubMed1998

Technical report: A low cost technique for vessel sizing in angioplasty.

Vessel measurement in angiography is important for balloon and stent sizing. The most accurate techniques involve calibrating the angiographic image with a catheter with radioopaque markers, but these are expensive. A new method of vessel sizing for angioplasty and stenting is described: the guidewire is moved within the vessel through a set distance, and this movement is shown by digital subtraction. Testing with phantoms shows this to be simple, accurate and reproducible.

Angiography, Digital Subtraction↗