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Results for “Radiography, Interventional”

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At least 19 recordsLinked to original sources
PubMed1991

[Selective salpingography and tubal interventional radiography].

The study involved 70 patients considered to be sterile and in whom hysterosalpingography showed no tubal passage. Selective catheterisation enabled opacification under pressure in more than 80 p. cent of cases, with perfect visualisation of the entire tubes and significant peritoneal passage. In the presence of obstructive stenosis, disobstruction-reacanalisation using a soft probe was attempted with success in more than one case out of two. Future perspectives of selective salpingography appear to be very large. This technique seems to have a large number of indications apart from transport problems: recanalisation, sterilisation, and tubal antibiotic sensitivity studies.

Evaluation Studies as Topic↗
PubMedDate not supplied

A low-cost system for digital image processing of moving images in real time: application to X-ray fluoroscopy.

A low-cost image processing system and two real-time digital image processing algorithms using parallel processing have been developed to provide automatic equalization of moving images at video frequencies. The algorithms differ in the processing time required and the characteristics of the final image. The system takes an entire image from the video sequence, digitizes it, automatically calculates its histogram and the lowest and highest useful grey levels, equalizes the histogram, and finally converts it to the analogue image. Methods were applied to X-ray fluoroscopy (angiography) images, which are usually saturated or of uniform intensity (low contrast), leading to information loss. An application of these methods is in interventional radiography, which requires images in real time.

Algorithms↗
PubMed1991

How well can radiographers triage x ray films in accident and emergency departments?

OBJECTIVE: To assess the ability of radiographers to identify abnormal radiographs of patients attending accident and emergency departments. DESIGN: Prospective study over six weeks. SETTING: Teaching hospital casualty x ray department. PATIENTS: 3394 consecutive patients referred for radiography. INTERVENTIONS: Radiographs were assessed by radiographers who were offered a four point triage scheme: normal, abnormal, insignificantly abnormal, or further advice required. MAIN OUTCOME MEASURES: Comparison of radiographers' assessments with an assessment made independently by the reporting radiologists. RESULTS: Overall disagreement between the radiographers and radiologists was 9.4%. There were 7% false positives and 14% false negatives. Most errors occurred in assessing radiographs of the skull, facial bones, chest, abdomen, and soft tissues. CONCLUSION: Unselected radiographers can offer useful advice on radiographs to casualty officers, but their high rate of false positive diagnoses indicates that they cannot triage casualty radiographs sufficiently accurately to allow them to extend their current reporting role.

Clinical Competence↗
PubMed1991

Importance of daily rounds by the radiologist after interventional procedures of the abdomen and chest.

A prospective study was performed to evaluate the clinical utility of daily rounds by the radiologist for patients with indwelling catheters in the chest and abdomen, placed during interventional radiologic procedures. The 7-week evaluation included documentation of the number of patients seen, time spent with each per day, number of problems identified, management of these problems, and consultations for new cases generated by interaction with other staff. During the 268 visits to 37 patients, 59 catheter-related problems were identified; 17 (29%) required further intervention in the radiology department, and 42 (71%) were managed at the patient's bedside. Of the patients who were followed up, 22 (59%) had some catheter-related problem identified during their hospital stay. Daily rounds by the radiologist are an essential component of patient care after catheter-related interventional procedures and should be made by those who perform and understand the procedures.

Catheterization↗