RESUMEN
To the radiologist, complications of lung transplant are believed to occur along a time continuum, which is key given the nonspecific clinical and imaging findings. Pulmonary artery twisting in the immediate and early postoperative period is a known complication of transplantation, but receives relatively little attention. Early recognition is paramount due to the high morbidity and mortality of such a complication. This case highlights some imaging manifestations of the pulmonary artery.
Asunto(s)
Várices Esofágicas y Gástricas/complicaciones , Várices Esofágicas y Gástricas/cirugía , Hemorragia Gastrointestinal/complicaciones , Hemorragia Gastrointestinal/cirugía , Falla de Prótesis , Anciano de 80 o más Años , Endoscopía , Femenino , Humanos , Radiografía Abdominal , Tomografía Computarizada por Rayos X , Insuficiencia del TratamientoAsunto(s)
Enfermedades Duodenales/terapia , Embolización Terapéutica , Perforación Intestinal/diagnóstico por imagen , Derivación Portosistémica Intrahepática Transyugular , Complicaciones Posoperatorias/diagnóstico por imagen , Falla de Prótesis , Várices/terapia , Anciano , Carcinoma de Células Renales/cirugía , Ablación por Catéter , Colangitis , Enfermedades Duodenales/diagnóstico por imagen , Enfermedades Duodenales/etiología , Endoscopía del Sistema Digestivo , Femenino , Encefalopatía Hepática , Humanos , Hipertensión Portal/complicaciones , Neoplasias Renales/cirugía , Cirrosis Hepática Biliar/complicaciones , Venas Mesentéricas , Radiografía Abdominal , Cirugía Asistida por Computador , Várices/etiologíaAsunto(s)
Oxigenación por Membrana Extracorpórea , Embolización de la Arteria Uterina , Hemorragia Uterina/cirugía , Angiografía , Aorta Abdominal/diagnóstico por imagen , Femenino , Fluoroscopía , Humanos , Arteria Ilíaca/diagnóstico por imagen , Persona de Mediana Edad , Radiografía Intervencional , Insuficiencia Respiratoria/complicaciones , Choque Cardiogénico/complicaciones , Taquicardia Ventricular/complicaciones , Hemorragia Uterina/diagnóstico por imagenRESUMEN
PURPOSE: To test operator exposures inside radiation protection garments in a simulated clinical setup, examining trends related to multiple characteristics. MATERIALS AND METHODS: Sixteen garment models containing lead or nonlead materials and a suspended device (Zero-Gravity) were tested for operator exposure from X rays scattered from an acrylic patient phantom. Weight and surface area were determined. The operator phantom was a wooden frame containing a dosimeter in its cavity. Garments were draped over the frame, and the setup was placed in a typical working position. RESULTS: There was substantial variability in exposures for all garments, ranging from 0.52 to 13.8 µSv/h (mean, 5.39 µSv/h ± 3.82), with a 12-fold difference for garments labeled 0.5 mm Pb equivalent. Most of the especially poor protectors were nonlead, even when not lightweight. Nonlead models were not more protective per weight overall. For closed-back garments labeled 0.5 mm Pb equivalent, mean exposures were lower for lead than for nonlead materials (mean, 1.48 µSv/h ± 0.434 vs 6.26 µSv/h ± 5.13, respectively). Density per exposure-1 was lower for lead than nonlead materials in the 0.5-mm Pb equivalent group, counter to advertised claims. Open-back configurations were lighter than closed (3.3 kg vs 6.0 kg, respectively), with similar mean exposures (5.30 µSv/h vs 5.39 µSv/h, respectively). The lowest exposure was 0.52 µSv/h (9.8% of the mean of all garments) for the suspended device. CONCLUSIONS: Operator exposure in a realistic interventional setup is highly variable for similarly labeled protective garments, highlighting the necessity of internal validation when considering nonlead and lightweight models.
Asunto(s)
Exposición Profesional/prevención & control , Salud Laboral , Etiquetado de Productos , Ropa de Protección , Dosis de Radiación , Exposición a la Radiación/prevención & control , Protección Radiológica/instrumentación , Radiografía Intervencional/efectos adversos , Radiólogos , Diseño de Equipo , Humanos , Ensayo de Materiales , Enfermedades Profesionales/etiología , Enfermedades Profesionales/prevención & control , Exposición Profesional/efectos adversos , Fantasmas de Imagen , Exposición a la Radiación/efectos adversos , Traumatismos por Radiación/etiología , Traumatismos por Radiación/prevención & control , Monitoreo de Radiación/métodos , Protección Radiológica/métodos , Dispersión de RadiaciónRESUMEN
Inferior vena cava filters are commonly placed for a variety of indications, often when anticoagulation is contraindicated. Although technical success is high and complication rates low, there are complications that are important to be aware of. We present the case of a 29-year-old woman with a prolonged filter dwell time resulting in complications.