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Cardiovascular and Interventional Radiology

Warren Clements
Risks of IVC filter insertion are numerous but include IVC stenosis or thrombosis and may result in caval occlusion. Acute IVC occlusion is almost always symptomatic, and treatment can be aggressive such as catheter-directed thrombolysis or conservative such as anticoagulation. The more challenging cohort of patients is those where there has been chronic complete occlusion of the IVC without symptoms, sometimes only identified at the time of routine filter retrieval. We explore the available evidence and discuss different management approaches in this circumstance ranging from aggressive to conservative...
September 21, 2018: Cardiovascular and Interventional Radiology
Arnaud Hocquelet, Charalampos Sotiriadis, Rafael Duran, Boris Guiu, Takamune Yamaguchi, Nermin Halkic, Emmanuel Melloul, Nicolas Demartines, Alban Denys
PURPOSE: To compare estimated future remnant liver (FRL) growth following portal vein embolization or liver venous deprivation (LVD) (combined PVE and right hepatic vein embolization), before surgery for a Klatskin tumor in patients who receive intraoperative biliary drainage or before venous interventional radiology. MATERIAL AND METHOD: Six patients underwent LVD and six underwent PVE alone before hepatectomy for a Klatskin tumor. Before embolization, the FRL ratio, prothrombin time and bilirubin levels were similar in both groups...
September 20, 2018: Cardiovascular and Interventional Radiology
Warren Clements, Gerard S Goh, Julian Nguyen, John Vrazas, Chris Rogan, Gabriel Lau, Tim Joseph
PURPOSE: Over recent times, procedural Radiologists have begun to establish themselves as the distinct subspecialty of Interventional Radiology (IR). The Interventional Radiology Society of Australasia (IRSA) was established in 1982 to share collaborative ideas, encourage research, and promote education. IRSA developed a weekend registrar workshop attended by Radiology Registrars from Australia and New Zealand. In the 2018 event, we surveyed the Registrars to identify their interest in IR training before and after the workshop...
September 20, 2018: Cardiovascular and Interventional Radiology
Atsushi Saiga, Hajime Yokota, Takashi Higashide, Hazuki Takishima, Akiko Omoto, Yoshihiro Kubota, Takuro Horikoshi, Takashi Uno
PURPOSE: To evaluate the relationship between gelatin sponge preparation methods and the incidence of intrauterine synechia following uterine artery embolization (UAE) for postpartum hemorrhage (PPH). MATERIALS AND METHODS: In a retrospective monocentric study, we used data from 20 consecutive UAE procedures (19 patients) for PPH, performed in 2007-2016, in which gelatin sponge had been used. The gelatin sponge was processed either into a slurry by pumping it back and forth about 10 times through two syringes connected to a three-way stopcock or into pledgets using a scalpel and small scissors to obtain pieces approximately 2 × 2 × 2 mm in size...
September 20, 2018: Cardiovascular and Interventional Radiology
(no author information available yet)
No abstract text is available yet for this article.
September 20, 2018: Cardiovascular and Interventional Radiology
Diederik J Wijffels, Diederik O Verbeek, Kornelis J Ponsen, J Carel Goslings, Otto M van Delden
Pelvic fractures are potentially life-threatening injuries with high mortality rates, mainly due to intractable pelvic arterial bleeding. However, concomitant injuries are frequent and may also be the cause of significant blood loss. As treatment varies depending on location and type of hemorrhage, timely imaging is of critical importance. Contrast-enhanced CT offers fast and detailed information on location and type of bleeding. Angiography with embolization for pelvic fracture hemorrhage, particularly when performed early, has shown high success rates as well as low complication rates and is currently accepted as the first method of bleeding control in pelvic fracture-related arterial hemorrhage...
September 17, 2018: Cardiovascular and Interventional Radiology
A Digklia, R Duran, K Homicsko, L E Kandalaft, A Hocquelet, A Orcurto, G Coukos, A Denys
The therapeutic options in the treatment of cancer therapy have been recently significantly increased with systemic immune-targeted therapies. Novel immunotherapy approaches based on immune checkpoint blockade or engineered cytotoxic T lymphocytes have reached late-stage clinical development, with highly encouraging results. The success of cancer immunotherapy has generated a tremendous interest in further developing and exploring these strategies in combination with other approaches such as radiotherapy and local ablative therapies in oncology...
September 12, 2018: Cardiovascular and Interventional Radiology
Chen Wang, Wansheng Wang, Jian Shen, Baosheng Ren, Xiaoli Zhu, Caifang Ni
PURPOSE: To evaluate the feasibility of helical iodine-125 (I-125) seed portal vein implantation. MATERIALS AND METHODS: Helical I-125 seed implants were placed into the portal vein of healthy pigs through the transjugular (n = 3) or percutaneous transhepatic (n = 3) route. Six pigs received follow-up at 9 weeks after implantation. Blood tests were performed preimplantation, and at 1 and 9 weeks after implantation. Contrast-enhanced computed tomography (CT) and single-photon emission computed tomography combined with CT (SPECT-CT) were acquired after implantation...
August 30, 2018: Cardiovascular and Interventional Radiology
J El-Sheikha, M W Little, M Bratby
A 25-year-old female was referred to the Interventional Radiology Department for investigation and treatment of a rectal venous malformation (RVM) causing large recurrent episodes of rectal bleeding and chronic anaemia. Magnetic resonance imaging (MRI) demonstrated a large venous malformation affecting the rectum, lower pelvis and left thigh. After three failed attempts at injection foam sclerotherapy using fluoroscopic colonoscopy, a multidisciplinary team proposed an embolization procedure of the arterial inflow to the venous malformation...
August 30, 2018: Cardiovascular and Interventional Radiology
Gernot Rott
No abstract text is available yet for this article.
August 30, 2018: Cardiovascular and Interventional Radiology
Yumei Yang, Zilin Qin, Duanming Du, Yumin Wu, Shuibo Qiu, Feng Mu, Kengcheng Xu, Jibing Chen
PURPOSE: This study aimed to investigate the safety and short-term efficacy of irreversible electroporation (IRE) combined with allogenic natural killer (NK) cell immunotherapy in the treatment of patients with unresectable primary liver cancer. MATERIALS AND METHODS: Between October 2015 and December 2016, 40 patients were enrolled and randomly allocated to either the IRE group (n = 22) or the IRE-NK group (n = 18). All adverse events experienced by the patients were recorded; the changes in tumor biomarkers [AFP, CA 19-9, circulating tumor cells (CTCs)], lymphocyte number and function, quality of life, clinical response, progression-free survival (PFS) and overall survival (OS) were assessed...
August 27, 2018: Cardiovascular and Interventional Radiology
Martin Köcher, Daniel Šaňák, Jana Zapletalová, Filip Cihlář, Daniel Czerný, David Černík, Petr Duras, Ladislav Endrych, Roman Herzig, Jiří Lacman, Miroslav Lojík, Svatopluk Ostrý, Radek Pádr, Vladimír Rohan, Miroslav Škorňa, Martin Šrámek, Luděk Štěrba, Daniel Václavík, Jiří Vaníček, Ondřej Volný, Aleš Tomek
BACKGROUND AND PURPOSE: Experienced multidisciplinary stroke team and well-organized hospital management are considered necessary to achieve good results after mechanical thrombectomy (MT) in acute ischemic stroke patients. We analyzed the technical results of MT performed in the Czech Republic in the year 2016 to provide relevant data for further quality improvement. MATERIAL AND METHODS: All centers performing MT in the CR were called for detailed technical and clinical data from year 2016, which were anonymously analyzed and relevant technical key time intervals were compared...
August 27, 2018: Cardiovascular and Interventional Radiology
Vinicius Adami Vayego Fornazari, Denis Szejnfeld, Jacob Szejnfeld, Claúdio Emilio Bonduki, Stela Adami Vayego, Suzan Menasce Goldman
PURPOSE: To assess uterine contractility using ultrafast magnetic resonance imaging (cine MRI) before and after uterine fibroid embolization (UFE). MATERIALS AND METHODS: This is a prospective study of uterine contractility in 26 patients (age 30-41 years) undergoing UFE for symptomatic uterine fibroids. Cine MRI was performed before and 6 months after UFE. Two radiologists evaluated uterine contractility and classified it as absent, ordered, or disordered. Patients were then grouped into three distinct patterns of progression: unchanged contractility (group A), modified contractility (B), and loss of contractility (C)...
August 27, 2018: Cardiovascular and Interventional Radiology
R Nasirzadeh, S F Stella, O Mironov, A Jaberi, J R Kachura, M E Simons, J R Beecroft, G Annamalai, K T Tan
INTRODUCTION: Pulled or dislodged gastrostomy catheters represent a common complication associated with percutaneous gastrostomy and are a common cause of recurrent visits in patients with altered mental status. We intended to perform an experiment to compare the pull forces required to dislodge different commonly used gastrostomy catheters. MATERIALS AND METHODS: We used a digital force gauge device to measure the pull forces required to dislodge three types of 20 French gastrostomy catheters in double-layer skin models...
August 22, 2018: Cardiovascular and Interventional Radiology
Miyuki Maruno, Hiro Kiyosue, Norio Hongo, Shunro Matsumoto, Hiromu Mori
PURPOSE: Reperfusion via pulmonary-to-pulmonary arterial anastomoses is known as one type of recurrence of pulmonary arteriovenous malformations (PAVMs) after embolization. It is important to occlude the fistulous portion beyond the origin of the last normal branch from feeding artery of PAVMs to prevent recurrence. In this study, we evaluate the origin of the last normal branch by CT as well as its visibility on pulmonary arteriography (PAG). MATERIALS AND METHODS: We reviewed forty patients with 77 PAVMs who underwent coil embolization between October 2007 and December 2017...
August 22, 2018: Cardiovascular and Interventional Radiology
Mitsunari Maruyama, Takeshi Yoshizako, Hisatoshi Araki, Rika Yoshida, Shinji Ando, Megumi Nakamura, Hajime Kitagaki
PURPOSE: To evaluate the utility of future liver remnant plasma clearance rate of indocyanine green (ICGK-F) for predicting post-hepatectomy liver failure (PHLF) compared with percentage future liver remnant volume-to-total liver volume ratio (%FLR) after portal vein embolization (PVE). MATERIALS AND METHODS: PVE procedures in 20 patients (15 patients underwent PVE with absolute ethanol; 5 patients with gelatin particles) from 2010 to 2017 were analyzed. %FLR = future liver remnant volume (ml)/[total liver volume (ml) - tumor volume (ml)] × 100; ICGK-F = plasma clearance rate of indocyanine green (ICGK) × %FLR/100 were calculated before and after PVE...
August 21, 2018: Cardiovascular and Interventional Radiology
Catherine Panick, Kevin Wunderle, Mark Sands, Charles Martin
PURPOSE: We sought to evaluate patient radiation exposure during complex liver interventional procedures performed with newer angiography equipment. MATERIALS AND METHODS: We conducted a retrospective study of transjugular intrahepatic portosystemic shunt (TIPS) creations and liver tumor embolizations performed in our new angiography suite (Discovery IGS740, GE Healthcare). T tests were used to compare air kerma-area product (PKA ) and reference plane air kerma (Ka,r ) in the new room versus data from historical rooms and previous studies (including the RAD IR study)...
August 21, 2018: Cardiovascular and Interventional Radiology
Colin J McCarthy, Aoife Kilcoyne, Xinhua Li, Alexis M Cahalane, Bob Liu, Ronald S Arellano, Raul N Uppot, Michael S Gee
PURPOSE: To determine the radiation dose associated with CT-guided percutaneous liver ablations and identify potential risk factors that result in higher radiation doses. MATERIALS AND METHODS: Between June 2011 and June 2015, 245 consecutive patients underwent 304 CT-guided liver ablation treatments. Patient demographics, tumor characteristics and procedural parameters were identified and analyzed. The peak skin dose and effective dose were assessed for each procedure...
August 21, 2018: Cardiovascular and Interventional Radiology
Andrej Isaak, Martin Takes, David Kingsmore, Lorenz Gürke
PURPOSE: To describe a novel endovascular technique for intracaval cement retrieval after spinal surgery. TECHNIQUE: We produced a replica of the intracaval cement fragment and a 3D print to plan the endovascular procedure. A woven caval filter was modified with two drawstring sutures to be used as fishing net. We used a 10F sheath in the right internal jugular vein to place the caval filter proximal to the floating fragment, and a 24F sheath in the right femoral vein was the working access...
August 20, 2018: Cardiovascular and Interventional Radiology
Gregory Amouyal, Olivier Pellerin, Costantino Del Giudice, Carole Dean, Nicolas Thiounn, Marc Sapoval
The development of prostatic artery embolization has led to better understand the complex male pelvic arterial anatomy. To the best of our knowledge, there is still no precise description of the distribution of the branches of the prostatic artery (PA) after its origin. In this study, the patterns of prostatic feeders near to and into the prostate were analyzed, and a classification was proposed. MATERIALS AND METHODS: This study is based on angiograms of 101 consecutive male patients, mean age 70, who underwent PAE between December 2013 and June 2016, to treat symptomatic benign prostatic hyperplasia...
August 20, 2018: Cardiovascular and Interventional Radiology
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