01 julio 2013

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Technical and Outcome Considerations of Endovascular Treatment for Internal Iliac Artery Aneurysms

Akhmadu Muradi, Masato Yamaguchi, Takuya Okada, Yoshikatsu Nomura, Koji Idoguchi, Eisuke Ueshima, Noriaki Sakamoto, Ryota Kawasaki, Yutaka Okita, Koji Sugimoto

Purpose: This study was designed to analyze the outcomes of endovascular treatment for internal iliac artery aneurysm (IIAA) at mid-term follow-up.

01 julio 2013

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Percutaneous Intraductal Radiofrequency Ablation for Clearance of Occluded Metal Stent in Malignant Biliary Obstruction: Feasibility and Early Results

Madhava Pai, Vlastimil Valek, Andrasina Tomas, Attila Doros, Pietro Quaretti, Rita Golfieri, Cristina Mosconi, Nagy Habib

Purpose: The major complication occurring with biliary stents is stent occlusion, frequently seen because of tumour in-growth, epithelial hyperplasia, and sludge deposits, resulting in recurrent jaundice and cholangitis. We report a prospective study with the results of first in man percutaneous intraductal radiofrequency (RF) ablation to clear the blocked metal stents in patients with malignant biliary obstruction using a novel bipolar RF catheter.

01 julio 2013

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Simultaneous Biliary Drainage and Portal Vein Embolization Before Extended Hepatectomy for Hilar Cholangiocarcinoma: Preliminary Experience

Boris Guiu, Pierre Bize, Nicolas Demartines, Mickaël Lesurtel, Alban Denys

Background: Patients with resectable hilar cholangiocarcinoma often present obstructive jaundice and a small future remnant liver (FRL) ratio. A sequential approach comprising preoperative biliary drainage followed by portal vein embolization (PVE) is usually performed but leads to long preoperative management (6–12 weeks) before patients can undergo resection. To simplify and shorten this phase of liver preparation, we developed a new preoperative approach that involves percutaneous biliary drainage and PVE during the same procedure. We report the outcomes of this combined procedure.

01 julio 2013

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Superiority of Proximal Embolization of the Gastroduodenal Artery with the Amplatzer Vascular Plug 4 Before Yttrium-90 Radioembolization: A Retrospective Comparison with Coils in 134 Patients

Karsten Bulla, Sebastian Hubich, Maciej Pech, David Löwenthal, Jens Ricke, Oliver Dudeck

Purpose: To evaluate the effectiveness of proximal embolization of the gastroduodenal artery (GDA) using the Amplatzer Vascular Plug 4 (AVP 4) compared with pushable coils to avoid hepaticoenteric collaterals of the GDA stump, which may serve as pathways for nontarget embolization.

01 julio 2013

CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY. Single-session Aspiration Thrombectomy of Lower Extremity Deep Vein Thrombosis Using Large-size Catheter without Pharmacologic Thrombolysis

Sung Il Park, Myungsu Lee, Mu Sook Lee, Man Deuk Kim, Jong Yun Won, Do Yun Lee

Purpose: To retrospectively evaluate the efficacy of single-session aspiration thrombectomy using large catheters without pharmacologic thrombolysis to treat acute and subacute lower extremity deep vein thrombosis (DVT).

01 septiembre 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Contrast-enhanced US-guided Radiofrequency Ablation of Hepatocellular Carcinoma

S. Rajesh, MD , Amar Mukund, MD , Ankur Arora, MD, DNB, FRCR , Deepak Jain, FRCR , Shiv K. Sarin, MD, DM

Purpose: Contrast-enhanced ultrasound (US) has been shown to be an efficient imaging modality in guiding radiofrequency (RF) ablation of hepatocellular carcinomas (HCC). The purpose of the present study was to assess the usefulness of contrast-enhanced US in guiding RF ablation in patients with early-stage HCC that was not clearly visible on grayscale US or noncontrast computed tomography (CT).

01 septiembre 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Contrast-enhanced US-guided Radiofrequency Ablation of Hepatocellular Carcinoma

S. Rajesh, MD , Amar Mukund, MD , Ankur Arora, MD, DNB, FRCR , Deepak Jain, FRCR , Shiv K. Sarin, MD, DM

Purpose: Contrast-enhanced ultrasound (US) has been shown to be an efficient imaging modality in guiding radiofrequency (RF) ablation of hepatocellular carcinomas (HCC). The purpose of the present study was to assess the usefulness of contrast-enhanced US in guiding RF ablation in patients with early-stage HCC that was not clearly visible on grayscale US or noncontrast computed tomography (CT).

01 septiembre 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Targeting and Recanalization after Embolization with Calibrated Resorbable Microspheres versus Hand-cut Gelatin Sponge Particles in a Porcine Kidney Model

Noboru Maeda, MD, PhD , Valentin Verret, Eng , Laurence Moine, PhD , Laurent Bédouet, PhD , Stéphanie Louguet, PhD , Emeline Servais, PhD , Keigo Osuga, MD, PhD , Noriyuki Tomiyama, MD, PhD , Michel Wassef, MD , Alexandre Laurent, MD, PhD

Purpose: To report on polyethylene glycol hydrogel-based resorbable embolization microspheres (REM) that were synthesized to resorb in < 24 hours, before inflammation and vascular remodeling, to achieve a complete arterial recanalization and to compare targeting and recanalization of REM of 300–500 µm, 500–700 µm, and 700–900 µm with hand-cut gelatin sponge particles (GSP).

01 septiembre 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Clinical Evaluation of Transcatheter Arterial Chemoembolization with 2-Day-soluble Gelatin Sponge Particles for Hepatocellular Carcinoma—Comparison with Insoluble Gelatin Sponge Particles

Nobuyuki Kawai, MD , Morio Sato, MD , Hiroki Minamiguchi, MD , Akira Ikoma, MD , Hiroki Sanda, MD , Kouhei Nakata, MD , Hirotatsu Sato, MD , Hinako Sakaguchi, MD , Motoki Nakai, MD , Tetsuo Sonomura, MD

Purpose: To compare therapeutic effect, adverse events, and embolized hepatic artery impairment in transcatheter arterial chemoembolization between Lipiodol plus insoluble gelatin sponge particles (Gelpart) and Lipiodol plus 2-day-soluble gelatin sponge particles (2DS-GSPs).

01 septiembre 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Apparent Diffusion Coefficient of Uterine Leiomyoma as a Predictor of the Potential Response to Uterine Artery Embolization

Mu Sook Lee, MD , Man Deuk Kim, MD, PhD , Dae Chul Jung, MD, PhD , Myungsu Lee, MD , Jong Yun Won, MD, PhD , Sung Il Park, MD , Do Yun Lee, MD , Kwang-hun Lee, MD, PhD

Purpose: To determine the utility of the apparent diffusion coefficient (ADC) of uterine leiomyoma for prediction of the potential response to uterine artery embolization (UAE).

01 septiembre 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Inferior Mesenteric Artery Collaterals to the Uterus during Uterine Artery Embolization: Prevalence, Risk Factors, and Clinical Outcomes

Suyon Chang, MD , Mu Sook Lee, MD , Man Deuk Kim, MD , Chang Jin Yoon, MD , Dae Chul Jung, MD , Myungsu Lee, MD , Sung Il Park, MD , Jong Yoon Won, MD , Do Yun Lee, MD

Purpose: To evaluate the prevalence of inferior mesenteric artery (IMA) collaterals to the uterus found during uterine artery embolization (UAE), associated risk factors, and clinical outcomes.

01 septiembre 2013

JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY. Embolization of Angiographically Visible Type I and II Utero-ovarian Anastomoses during Uterine Artery Embolization for Fibroid Tumors: Impact on Symptom Recurrence and Permanent Amenorrhea

Gloria M.M. Salazar, MD , T. Gregory Walker, MD , Raymond F. Conway, MD , Kalpana Yeddula, MD , Stephan Wicky, MD , Arthur C. Waltman, MD , Sanjeeva P. Kalva, MD

Purpose: To compare the incidences of symptom recurrence and permanent amenorrhea following uterine artery embolization (UAE) for symptomatic fibroid tumors in patients with type I and II utero-ovarian anastomoses (UOAs) with versus without ovarian artery embolization (OAE).

01 septiembre 2013

RADIOLOGY. Solitary Painful Osseous Metastases: Correlation of Imaging Features with Pain Palliation after Radiofrequency Ablation—A Multicenter American College of Radiology Imaging Network Study

Jeffrey P. Guenette, BA, Michael J. Lopez, MS, Eunhee Kim, PhD and Damian E. Dupuy, MD

Purpose: To identify the correlation of pre- and postablation imaging features with pain relief, pain intensity, and patient mood after radiofrequency (RF) ablation of solitary painful osseous metastases.

01 septiembre 2013

RADIOLOGY. Recurrent Variceal Bleeding and Shunt Patency: Prospective Randomized Controlled Trial of Transjugular Intrahepatic Portosystemic Shunt Alone or Combined with Coronary Vein Embolization

Shuang Chen, MD, Xiao Li, MD, Bo Wei, MD, Huan Tong, MD, Ming-Guang Zhang, BA, Zhi-Yin Huang, MD, Jia-Wei Cao, MD and Cheng-Wei Tang, MD, PhD

Purpose: To prospectively evaluate the efficacy of a transjugular intrahepatic portosystemic shunt (TIPS) alone and TIPS in association with embolotherapy (TIPS+E) in the variceal coronary vein to prevent recurrent variceal bleeding and stent dysfunction after TIPS creation.

01 septiembre 2013

RADIOLOGY. Unresectable Hepatocellular Carcinoma: MR Imaging after Intraarterial Therapy. Part I. Identification and Validation of Volumetric Functional Response Criteria

Susanne Bonekamp, DVM, PhD, Zhen Li, MD1, Jean-François H. Geschwind, MD, Vivek Gowdra Halappa, MD, Celia Pamela Corona-Villalobos, MD, Diane Reyes, BS, Timothy M. Pawlik, MD, David Bonekamp, MD, John Eng, MD and Ihab R. Kamel, MD, PhD

Purpose: To identify and validate the optimal thresholds for volumetric functional MR imaging response criteria to predict overall survival after intraarterial treatment (IAT) in patients with unresectable hepatocellular carcinoma (HCC).