Objectives The aim of this study was to investigate the incidence of May-Thurner anatomy (MTA) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) and identify its predictors.
ntroduction Fibromuscular dysplasia (FMD) is a nonatherosclerotic and noninflammatory vascular disease that most commonly affects renal and internal carotid arteries. Morphologically, FMD may be classified into 2 subtypes: multifocal and focal. The multifocal type has the appearance of so-called “string of beads” and is more common. Alternatively, the focal type appears as circumferential or tubular stenosis
ntroduction A 21-year-old man was referred to our hospital due to repeated syncopal episodes and swelling of the lower limbs. Multislice computed tomography (MSCT) revealed multiple thrombi in the pulmonary arteries. An inferior vena cava (IVC) filter (ALN, Macromed, Accrington, United Kingdom) was deployed and anticoagulation therapy was started. Because the deep vein thrombosis was persistent, we continued the anticoagulant agent for 2 years and attempted to remove the filter later.
Introduction The development of a carotid-esophageal fistula is a rare but severe condition with high mortality (1). So far, it is considered a surgery-only emergency, as endovascular attempts have always been unsuccessful (2). A 35-year-old man with a history of laryngeal carcinoma initially was treated with partial laryngectomy and later with complete laryngectomy and local radiotherapy. After a first episode of mild hemoptysis, baseline computed tomographic angiography showed no vascular abnormalities (Figure 1), but 24 h later, massive hematemesis commenced.
Introduction Abdominal angina is a rare disease caused by stenosis or occlusion of the mesenteric artery. This disease is typically treated by surgery, but use of endovascular treatment (EVT) has increased (1). A 62-year-old man was referred to our hospital for uncontrollable abdominal angina felt during dialysis. Contrast-enhanced computed tomography revealed chronic total occlusion (CTO) with a severely calcified nodule at the ostium of the superior mesenteric artery (SMA)
The use of neoadjuvant systemic therapy in the treatment of breast cancer patients is increasing beyond the scope of locally advanced disease. Imaging provides important information in assessing response to therapy as a complement to conventional tumor measurements via physical examination. The purpose of this article is to discuss the advantages and limitations of current assessment methods, as well as review functional and molecular imaging approaches being investigated as emerging techniques for evaluating neoadjuvant therapy response for patients with primary breast cancer.
Purpose: To assess the rate of underestimation of atypical ductal hyperplasia (ADH) and ductal carcinoma in situ (DCIS) at magnetic resonance (MR) imaging–guided vacuum-assisted breast biopsy and to explore the imaging, demographic, and histologic characteristics associated with lesion upgrade after surgery.
Purpose: To determine the effects of irreversible electroporation (IRE) on the neural tissues after ablation in the epidural space of the porcine spine.
Purpose: To determine whether variable hepatic microwave ablation (MWA) can induce local inflammation and distant pro-oncogenic effects compared with hepatic radiofrequency ablation (RFA) in an animal model.
Purpose: To develop and demonstrate in vitro and in vivo a single interventional magnetic resonance (MR)–active device that integrates the functions of precise identification of a tissue site with the delivery of radiofrequency (RF) energy for ablation, high-spatial-resolution thermal mapping to monitor thermal dose, and quantitative MR imaging relaxometry to document ablation-induced tissue changes for characterizing ablated tissue.
Purpose: To investigate the safety and targeting errors of deep-brain stimulation (DBS) electrodes placed under interventional magnetic resonance (MR) imaging, which allows near real-time anatomic placement without physiologic mapping.
Purpose: To determine if combretastatin A-4 phosphate disodium (CA4P) can enhance the tumor uptake of doxorubicin (Dox)-loaded, polyethylene glycol (PEG)–coated hollow gold nanospheres (HAuNS) mixed with ethiodized oil for improved photothermal ablation (PTA)–chemoembolization therapy (CET) of hepatocellular carcinoma (HCC) in rats.
Purpose: To characterize vessel occlusion rates and their role in local tumor progression in patients with hepatocellular carcinoma (HCC) who underwent microwave tumor ablation.
Purpose: To evaluate the long-term biochemical, clinical, and recurrence outcomes of radiofrequency (RF) ablation in treating primary aldosteronism due to aldosterone-producing adenoma (APA).
Purpose: To assess the feasibility of a magnetically assisted remote-controlled (MARC) catheter system under magnetic resonance (MR) imaging guidance for performing a simple endovascular procedure (ie, renal artery embolization) in vivo and to compare with x-ray guidance to determine the value of MR imaging guidance and the specific areas where the MARC system can be improved.
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