Purpose: Pre-treatment [Tc]TcMAA-based radioembolization treatment planning using multicompartment dosimetry involves the definition of the tumor and normal tissue compartments and calculation of the prescribed absorbed doses. The aim was to compare the real-world utility of anatomic and [Tc]TcMAA-based segmentation of tumor and normal tissue compartments.
Materials And Methods: Included patients had HCC treated by glass [Y]yttrium microspheres, ≥ 1 tumor, ≥ 3 cm diameter and [Tc]TcMAA SPECT/CT imaging before treatment.
Purpose: To investigate the relationships between tumor absorbed dose (TAD) or normal tissue absorbed dose (NTAD) and clinical outcomes in hepatocellular carcinoma (HCC) treated with yttrium-90 glass microspheres.
Methods: TARGET was a retrospective investigation in 13 centers across eight countries. Key inclusion criteria: liver-dominant HCC with or without portal vein thrombosis, < 10 tumors per lobe (at least one ≥ 3 cm), Child-Pugh stage A/B7, BCLC stages A-C, and no prior intra-arterial treatment.
Purpose: Clinical studies conducted in different geographic regions using different methods to compare transarterial chemoembolization (TACE) and transarterial radioembolization (TARE) have demonstrated discordant results. Meta-analyses in this field indicate comparable overall survival (OS) with TACE and TARE, while reporting a longer time to progression and a higher downstaging effect with TARE treatment. In terms of isolated procedure costs, treatment with TARE is 2 to 3 times more, and in some countries even more, expensive than TACE.
View Article and Find Full Text PDFLeiomyosarcoma of the vascular origin is a rare malignant tumor. It originates from the smooth muscle cells of the media with intra- or extraluminal growth, and in most cases it arises in the inferior vena cava. The diagnosis is often delayed because the clinical symptoms of this disease are often nonspecific.
View Article and Find Full Text PDFPurpose: Percutaneous nephrostomy (PCN) catheters are placed under combined ultrasound and fluoroscopic guidance in the interventional radiology suite and present unique challenges in neonates and infants. The purpose of this study was to demonstrate feasibility of PCN using a "14-4" (trocar and cannula) technique on neonates and infants.
Materials And Methods: Between September 2009 and June 2014, data for 27 kidneys from consecutive 22 neonates or infants who underwent PCN catheter placement using the "14-4" technique were retrospectively analyzed.
Purpose: To evaluate the effect of ShearWave(™) elastography (SWE) for the assessment of liver fibrosis after radioembolization (RE) in patients with liver malignancies.
Materials And Methods: We prospectively examined the effects of SWE before and after RE in 17 adult patients, from June 2012 to September 2013. All patients underwent SWE within 1 month before and 3 months (96.
Objective: To investigate the utility of ultrasound cross-sectional area (CSA) measurements for diagnosing acetabular labral (AL) tears.
Methods: The study included qualitative/quantitative ultrasound examinations of 55 hips in 52 patients with a presumed diagnosis of AL tear and 56 hips in 28 healthy volunteers. MR arthrography examinations were available only for the patients and were reviewed for the presence of AL thickening and tear.
Purpose: The management of congenital peripheral vascular malformations (VMs) can present a difficult therapeutic challenge. Endovascular transcatheter embolization of peripheral VMs is widely accepted as a first therapeutic option for many VMs. However, data describing the use of Onyx are limited in children with peripheral VMs.
View Article and Find Full Text PDFA 68-year-old man who was subjected to stent-grafting of a descending thoracic aortic aneurysm (TAA) 4 months previously was admitted to our hospital with constitutional symptoms, including high fever, sweating, nausea, vomiting, weight loss, and backache. An infected aneurysmal sac was suspected based on computed tomography (CT) findings, and an aortoesophageal fistula (AEF) was identified during esophagoscopy. CT-guided aspiration was performed using a 20-G Chiba needle, confirming the presence of infection.
View Article and Find Full Text PDFPurpose: To report the efficacy of percutaneous puncture and sclerosis using polidocanol in the treatment of venous malformations (VMs) in pediatric patients.
Patients/methods: Between March 2007 and February 2011, a series of 19 patients with VMs on the upper and lower extremities had undergone a total of 89 sessions of intralesional sclerotherapy using polidocanol. All the procedures were performed in an angiographic suite under general anesthesia in order to maintain sedation for facilitating the procedure.
Background: Usually high-flow priapism is caused by perineal or penile blunt trauma with direct cavernosal artery injury and formation of an arterial-lacunar fistula. Rarely, cavernosal artery injury may result from penetrating trauma. Treatment of high-flow priapism is not considered an emergency because patients are at low risk for permanent complications.
View Article and Find Full Text PDFScand J Clin Lab Invest
February 2009
Objective: Oxidative modification of LDL (oxLDL) is important in atherogenesis and is proposed as a useful marker for identifying patients with coronary artery disease. Antibody to oxLDL (oxLDL Ab) is detected in human sera, although its biological significance is not well established. We aimed to measure oxLDL and oxLDL Ab in peripheral atherosclerotic disease (PAD) patients, and to examine the relation between them in an attempt to understand the role of oxLDL Ab.
View Article and Find Full Text PDFIntroduction: High-flow arterial priapism is rare and characterized by a prolonged nonpainful erection. Autologous clot embolization allows complete resolution of the problem in most of the cases.
Aim: To review our experience with superselective transcatheter embolization in the treatment of nonischemic priapism.
We report lumbar and iliac artery aneurysms in a 3-month-old boy with Menkes' disease. The iliac artery aneurysm thrombosed spontaneously, documented by follow-up colour Doppler sonography. The lumbar artery aneurysm was successfully treated using a cover stent.
View Article and Find Full Text PDFPurpose: To demonstrate the feasibility and preliminary efficacy of endovascular embolization of peripheral congenital vascular malformations (VMs) with use of a nonadhesive liquid embolic agent, Onyx.
Materials And Methods: Nine patients with a mean age of 20.8 years had local low-flow (n = 4), local high-flow (n = 3), or diffuse high-flow (n = 2) VMs located in the upper or lower extremities.
The authors present a 4-year-old boy who had a large mucin-hypersecreting hepatobiliary cystadenoma. The tumor caused a hepato-colo-cutaneous fistula, which produced a large amount of external fluid loss. Total excision and the repair of the fistula could be possible after shrinkage of the tumor with the use of selective embolization of the feeding artery by interventional radiology.
View Article and Find Full Text PDF