OBJECTIVE. A subset of patients with stage IA and IB non–small cell lung cancer (NSCLC) is ineligible for surgical resection and undergoes radiation therapy. Radiofrequency ablation (RFA) and stereotactic body radiotherapy are newer potentially attractive alternative therapies.
OBJECTIVE. Metastatic breast cancer in internal mammary (IM) lymph nodes is associated with a poor prognosis. This study correlates 18F-FDG PET/CT–positive IM lymph nodes with ultrasound-guided fine-needle aspiration (FNA) cytopathologic results and determines risk factors for IM node positivity on PET/CT.
OBJECTIVE. The purpose of this study was to assess the feasibility and diagnostic performance of an unenhanced MR angiography sequence (Syngo Native Space, Siemens Healthcare) to detect and quantify lower-limb peripheral arterial disease (PAD), with gadolinium-enhanced MR angiography (CE-MRA) as the reference standard.
OBJECTIVE. The objective of our study was to identify the iodine concentration that yields the highest intravascular contrast enhancement in MDCT angiography by intraindividual comparison in an animal model.
OBJECTIVE. T-fastener gastropexy is a step in percutaneous radiologic gastrostomy in which the stomach is fastened to the abdominal wall. Minor complications of gastropexy are often related to the prolonged presence of T-fastener sutures. We describe a new technique for gastropexy using absorbable sutures placed subcutaneously, as opposed to the standard percutaneous approach.
OBJECTIVE. The objective of our study was to clarify the hepatic artery anatomy of the left hemiliver using the fusion image of CT angiography (CTA) and CT arterial portography.
Hypertension is a growing clinical burden associated with significant morbidity and mortality. Those patients who remain with uncontrolled blood pressure despite multiple appropriate tablets are labelled as resistant hypertension. This cohort faces the highest risk. A key driving factor in resistant hypertension is an abnormally elevated sympathetic nervous system (SNS). It is now possible to attenuate this non-pharmacologically by performing radiofrequency ablation to the renal sympathetic nerves using a transcatheter approach. Currently available trial data show impressive blood pressure reductions with this therapy and, more importantly, its relative safety. The National Health Service (NHS) experience with this procedure is at an early stage, but is likely to grow with guidance already published by the joint British Societies and National Institute for Health and Care Excellence (NICE).
The amount of the future liver remnant volume is fundamental for hepato-biliary surgery, representing an important potential risk-factor for the development of post-hepatectomy liver failure. Despite this, there is no uniform consensus about the amount of hepatic parenchyma that can be safely resected, nor about the modality that should be chosen for this evaluation. The pre-operative evaluation of hepatic volume, along with a precise identification of vascular and biliar anatomy and variants, are therefore necessary to reduce surgical complications, especially for extensive resections. Some studies have tried to validate imaging methods [ultrasound, computed tomography (CT), magnetic resonance imaging] for the assessment of liver volume, but there is no clear evidence about the most accurate method for this evaluation. Furthermore, this volumetric evaluation seems to have a certain degree of error, tending to overestimate the actual hepatic volume, therefore some conversion factors, which should give a more reliable evaluation of liver volume, have been proposed. It is widespread among non-radiologists the use of independent software for an off-site volumetric analysis, performed on digital imaging and communications in medicine images with their own personal computer, but very few studies have provided a validation of these methods. Moreover, while the pre-transplantation volumetric assessment is fundamental, it remains unclear whether it should be routinely performed in all patients undergoing liver resection. In this editorial the role of imaging in the estimation of liver volume is discussed, providing a review of the most recent literature and a brief personal series of correlations between liver volumes and resection specimens’ weight, in order to assess the precision of the volumetric CT evaluation.
Acute gastrointestinal bleeding (GIB) can lead to significant morbidity and mortality without appropriate treatment. There are numerous causes of acute GIB including but not limited to infection, vascular anomalies, inflammatory diseases, trauma, and malignancy. The diagnostic and therapeutic approach of GIB depends on its location, severity, and etiology. The role of interventional radiology becomes vital in patients whose GIB remains resistant to medical and endoscopic treatment. Radiology offers diagnostic imaging studies and endovascular therapeutic interventions that can be performed promptly and effectively with successful outcomes. Computed tomography angiography and nuclear scintigraphy can localize the source of bleeding and provide essential information for the interventional radiologist to guide therapeutic management with endovascular angiography and transcatheter embolization. This review article provides insight into the essential role of Interventional Radiology in the management of acute GIB.
Radiofrequency ablation (RFA) is a minimally invasive therapy that kills malignant tumor cells by causing thermal coagulative necrosis (1,2). For nearly 2 decades, it has been used to treat a wide variety of solid organ tumors (1,2). Since its initial description by Dupuy and colleagues (3) in 2000, RFA of unresectable lung tumors has become common (2,4) and successfully performed with good outcomes (5). However, RFA is a localized therapy; unless all tumor masses are treated by means of RFA or by using an alternative effective therapy, RFA usually only serves as palliative treatment, such as for volume reduction of tumor or pain control in patients with systemic disease.
Radiofrequency (RF) ablation has proved to be safe and feasible, delivering promising results as a local treatment for patients with unresectable lung tumors or for those with resectable disease who refused surgery (1–6). The usefulness of this technique for local control of lung tumors is further supported by results reported in the first long-term follow-up studies (5–8).
OBJECTIVE. The purpose of this study was to determine the accuracy of ultrasound for detecting transjugular intrahepatic portosystemic shunt (TIPS) malfunction in covered stents in comparison with bare metal stents.
OBJECTIVE. The purpose of this study is to investigate the technical and clinical efficacy of percutaneous bilateral stent-in-stent deployment using open cell–design stents and to compare the clinical outcomes of bilateral stent placement using T and Y configurations.
OBJECTIVE. Radiation exposure to interventionalists is increasing. The currently available standard radiation protection devices are heavy and do not protect the head of the operator. The aim of this study was to evaluate the effectiveness and comfort of caps and thyroid collars made of a disposable, light-weight, lead-free material (XPF) for occupational radiation protection in a clinical setting.
OBJECTIVE. Radiologic percutaneous gastrostomy tube placement is a widely accepted method of enteral access for patients requiring long-term nutritional support for a variety of conditions. Although the safety of this procedure is well documented, complications do occur. The purpose of this article is to review the major and minor complications associated with gastrostomy tube placement and to present appropriate and effective management strategies.
Cookies Sociales
Son esos botones que permiten compartir el contenido del sitio web en sus redes sociales (Facebook, Twitter y Linkedin, previo tu consentimiento y login) a través de sistemas totalmente gestionados por dichas redes sociales, así como los recursos (pej. videos) y material que se encuentra en nuestra web, y que de igual manera se presta y gestiona completamente por un tercero.
Si no acepta estas cookies, no podrá compartir nuestro contenido a través de los botones, y en su caso, no podrás visualizar el contenido de terceros que hayamos incrustado en el sitio.
No las utilizamos