RESUMO
A survey of nonacademic community hospitals was conducted to ascertain the degree of control radiologists have of 38 selected imaging or imaging-related interventional procedures. Responses from 187 hospitals showed that community hospital radiologists totally controlled or strongly dominated almost half of these procedures, including all computed tomographic and magnetic resonance imaging studies, bone radiography, breast needle localization, emergency department radiography, arthrography, obstetric ultrasound (US), renal and peripheral angioplasty, percutaneous abscess and biliary drainage, percutaneous nephrostomy, cerebral angiography, and interventional neuroangiography. Radiologists dominated in prostate and vascular US, myelography, urethrography, cardiac nuclear medicine, percutaneous lung biopsy, ureteral stent placement, and pulmonary angiography, but there was also significant participation in these studies by nonradiologists. Radiologists and nonradiologists had roughly equivalent roles in hysterosalpingography, peripheral atherectomy and laser angioplasty, and percutaneous inferior vena cava filter placement. Nonradiologists dominated in echocardiography, endoscopic retrograde cholangiopancreatography, biliary and kidney stone lithotripsy, percutaneous gastrostomy, coronary angiography and angioplasty, and pediatric angiocardiography.
Assuntos
Diagnóstico por Imagem , Hospitais Comunitários , Radiologia Intervencionista , Radiologia , Coleta de Dados , Hospitais Universitários , Humanos , Medicina , EspecializaçãoRESUMO
The safety and efficacy of the Palmaz balloon-expandable vascular stent and its effect on the results of percutaneous transluminal angioplasty (PTA) were assessed in a prospective study. Technical success was achieved in the placement of 34 of 35 stents (97%) in 27 common and external iliac artery lesions in 19 patients (23 limbs) who presented with disabling claudication, rest pain, or gangrene. Stent placement improved the angiographic results achieved by PTA alone in all 19 patients. Seventeen of 23 limbs (74%) had significant (greater than 20%) elevation of the ankle-arm index after combined angioplasty and stent placement, including nine limbs with occlusive outflow lesions. All 10 patients with continuous runoff distal to the stent and one patient with discontinuous runoff had resolution of their symptoms, remaining unchanged at a mean follow-up time of 6 months. There were three complications: One significantly altered the patient's hospital course, but none detracted from the achieved stent result. Stent placement is effective and does not significantly increase the complication rate of conventional iliac PTA. The current delivery system, however, may limit its utility.