Highlights ■ Higher absorbed doses are associated with positive tumor responses in patients with hepatocellular carcinoma treated with Y-90 radioembolization. ■ Personalized dosimetry may improve treatment outcomes in selected patients. ■ Dosimetric parameters such as D30, D50, and D70 also correlate positively with objective responses, emphasizing the importance of precise dose calculation in treatment planning. ABSTRACT Objective: To evaluate the relationship between the absorbed dose and radiological response in patients with hepatocellular carcinoma undergoing resin microsphere radioembolization to enhance treatment […]

Highlights Radiofrequency ablation and percutaneous ethanol injection are neoadjuvant hepatocellular carcinoma treatment methods. Radiofrequency ablation achieves a higher complete response rate (96.3% versus 60.0%, p=0.001). Total cost analyses showed radiofrequency ablation as a more expensive method (p<0.001). The incremental cost-effectiveness ratio was US$ -2674.59 with an advantage for radiofrequency ablation. Incremental effectiveness (34.2%) was in favor of radiofrequency ablation versus percutaneous ethanol injection. ABSTRACT Objective: This study assessed the cost-effectiveness of radiofrequency ablation compared with percutaneous ethanol injection in patients […]

Highlights Once complete hepatocellular carcinoma necrosis is achieved, the diameter of the hepatocellular carcinoma decreases significantly, regardless of its initial size. Hepatocellular carcinoma >3cm showed greater reduction and longer time to recurrence. Hepatocellular carcinoma ≤3cm exhibited a shorter time to relapse. Recurrence rates were similar, as long as complete response was achieved. ABSTRACT Objective: To describe the radiological characteristics of hepatocellular carcinoma (HCC) lesions that achieved a complete response following drug-eluting bead transarterial chemoembolization (DEB-TACE) preceding liver transplantation. Methods: This […]

ABSTRACT Objective To describe an experience in the preoperative localization of small pulmonary nodules and ground-glass lesions to guide minimally invasive thoracic surgery; in addition, a literature review was conducted, including the main advantages and disadvantages of the different agents used, and site marking in a hybrid operating room. Methods A retrospective search was conducted in a Interventional Radiology Department database, between March 2015 and May 2019, to identify patients undergoing preoperative percutaneous marking of lung injuries measuring up to […]

ABSTRACT The author discusses the recent role of interventional radiology to prevent postpartum hemorrhagic complications that represent an important cause of maternal morbidity and mortality all over the world. Hence, hemorrhage control is mandatory. Traditional management and recent minimally invasive radiological procedures by means of inserting occluding balloons into appropriate vessels are analyzed. It is advisable that maternity hospitals have protocols for the management of obstetric hemorrhage by means of interventional radiology, either in their own departments or in association […]

ABSTRACT Objective: To present the preliminary results of a feasibility study performed to determine the value of a mobile interventional radiology unit used to promote a uterine embolization program for low-income patients. Methods: Forty patients with symptomatic fibroids were treated with uterine embolization. Procedures were performed in four public hospitals in the metropolitan area of Sao Paulo. This study was approved by the institutional research ethics committee and all patients signed an informed consent form. A mobile interventional radiology unit, […]