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Cardiovascular and Interventional Radiology

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https://www.readbyqxmd.com/read/30413918/comparative-analysis-of-intra-arterial-cone-beam-versus-conventional-computed-tomography-during-hepatic-arteriography-for-transarterial-chemoembolization-planning
#1
Ethan Y Lin, A Kyle Jones, Gouthami Chintalapani, Zachary S Jeng, Joe Ensor, Bruno C Odisio
PURPOSE: To compare the imaging characteristics of intra-arterial cone-beam computed tomography during hepatic arteriography (CBCTHA) versus intra-arterial computed tomography during hepatic arteriography (CTHA) for intraprocedural transarterial chemoembolization (TACE) planning. MATERIALS AND METHODS: This single-institution retrospective study included 144 patients (96 men, mean age 67.9 years; 48 women, mean age 62.3 years) who underwent 181 TACE sessions between January 2015 and July 2017...
November 9, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30413917/penetrating-aortic-ulcer-and-intramural-hematoma
#2
Gustavo S Oderich, Jussi M Kärkkäinen, Nanette R Reed, Emanuel R Tenorio, Giuliano A Sandri
Acute aortic syndromes include a variety of overlapping clinical and anatomic diseases. Penetrating aortic ulcer (PAU), intramural hematoma (IMH) and aortic dissection can occur as isolated processes or can be found in association. All these entities are potentially life threatening, so prompt diagnosis and treatment is of paramount importance. PAU and IMH lesions in the Stanford Type A distribution often require urgent open surgical repair. Lesions in the Stanford Type B distribution may be managed medically in the absence of symptoms or progression; however, a low threshold for endovascular or surgical treatment should be maintained...
November 9, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30413916/non-conservative-management-of-placenta-accreta-spectrum-in-the-hybrid-operating-room-a-retrospective-cohort-study
#3
César Hernán Meller, Ricardo D Garcia-Monaco, Gustavo Izbizky, Marina Lamm, Jorge Jaunarena, Oscar Peralta, Lucas Otaño
INTRODUCTION: Hysterectomy is the standard of care in placenta accreta spectrum (PAS). To reduce the risks of obstetric hemorrhage during surgery, endovascular interventions have been proposed. Our aim is to evaluate the feasibility and safety of the overall non-conservative management of PAS in the hybrid operating room (OR) to replace the classic two-step procedure (catheterization in the interventional radiology suite and transfer to conventional OR). MATERIALS AND METHODS: This is a retrospective study of series of patients with histopathologic confirmation of PAS treated in the hybrid OR at the same university hospital...
November 9, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30413915/distinguished-reviewers-2018
#4
(no author information available yet)
No abstract text is available yet for this article.
November 9, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30411153/predictors-of-recurrent-biliary-obstruction-following-percutaneous-uncovered-metal-stent-insertion-in-patients-with-distal-malignant-biliary-obstruction-an-analysis-using-a-competing-risk-model
#5
Jin-Xing Zhang, Bin Wang, Sheng Liu, Qing-Quan Zu, Hai-Bin Shi
OBJECTIVE: To evaluate predictive factors of recurrent biliary obstruction (RBO) following percutaneous uncovered metal stent placement for unresectable distal malignant biliary obstruction (MBO) by using a competing risk model. MATERIALS AND METHODS: Between March 2012 and March 2016, 119 patients underwent percutaneous uncovered metal stent placement with distal MBO at our institution. Univariate and multivariate analyses were conducted to identify the prognostic factors for RBO using a competing risk model...
November 8, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30411152/endovascular-treatment-of-arterial-complications-after-liver-transplantation-long-term-follow-up-evaluated-on-doppler-ultrasound-and-magnetic-resonance-cholangiopancreatography
#6
Romain Breguet, Federica Dondero, Lawrence Pupulim, Nicolas Goossens, Ailton Sepulveda, Claire Francoz, François Durand, Sylvain Terraz, Valérie Vilgrain, Maxime Ronot
PURPOSE: To evaluate long-term arterial patency and abnormalities of bile ducts in patients that had endovascular treatment for arterial complications after liver transplantation (LT). MATERIALS AND METHODS: Between 2004 and 2014, 1048 LTs were consecutively performed in our institution and 53 patients (42 men; age range 19-69) were diagnosed and treated by endovascular techniques for arterial complications such as stenosis, thrombosis, dissection or kinking of the hepatic artery (HA)...
November 8, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30411151/zilver-ptx-post-market-surveillance-study-of-paclitaxel-eluting-stents-for-treating-femoropopliteal-artery-disease-in-japan-2-year-results
#7
Kimihiko Kichikawa, Shigeo Ichihashi, Hiroyoshi Yokoi, Takao Ohki, Masato Nakamura, Kimihiro Komori, Shinsuke Nanto, Erin E O'Leary, Aaron E Lottes, Scott A Snyder, Michael D Dake
PURPOSE: A prospective, multicenter post-market surveillance study in Japan evaluated the 2-year safety and effectiveness of the DES in real-world patients with complex femoropopliteal artery lesions. METHODS: There were no exclusion criteria, and consecutive symptomatic patients with femoropopliteal lesions treated with the DES were enrolled in the study. Clinically driven target lesion revascularization (TLR) was defined as reintervention performed for > 50% diameter stenosis after recurrent clinical symptoms of peripheral arterial disease...
November 8, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30397773/use-of-amplatzer-vascular-plug-to-embolize-errant-chest-tube-tract-in-liver
#8
LETTER
Jong Hyun Byeon, Dong Jae Shim
No abstract text is available yet for this article.
November 5, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30390105/a-custom-radiopaque-thermoresponsive-chemotherapy-loaded-hydrogel-for-intratumoural-injection-an-in-vitro-and-ex-vivo-assessment-of-imaging-characteristics-and-material-properties
#9
Seóna M Rossi, Timothy E Murray, John Cassidy, Michael J Lee, Helena M Kelly
PURPOSE: Thermoresponsive hydrogels are gels which have different properties at varying temperatures. The objective of this study was to assess the material characteristics, imaging properties and chemotherapeutic drug release profile of a novel radiopaque thermoresponsive hydrogel in vitro, which is liquid at room temperature but solidifies at body temperature, to determine potential suitability for intratumoural delivery. MATERIALS AND METHODS: An iodinated radiopaque thermoresponsive hydrogel was formulated using iodixanol at a range of concentrations and assessed for sol-gel transition, radiopacity and imaging using CT and US...
November 2, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30390104/development-of-repeatable-microcatheter-access-port-for-intra-arterial-therapy-of-liver-cancer
#10
Yasushi Fukuoka, Toshihiro Tanaka, Hideyuki Nishiofuku, Takeshi Sato, Tetsuya Masada, Shota Tatsumoto, Nagaaki Marugami, Hiroshi Sakaguchi, Kimihiko Kichikawa
PURPOSE: To develop an implantable port in which a microcatheter can be inserted for a combination therapy of repeated transarterial chemoembolization (TACE) and hepatic arterial infusion chemotherapy (HAIC) for advanced liver cancer. MATERIALS AND METHODS: The design of a currently used implantable port was modified. A funnel part was constructed in the port. The septum was punctured by a 20-gauge indwelling needle, and 2.0-Fr non-tapered microcatheter was inserted into the port...
November 2, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30386883/hydrodissection-of-the-retrohepatic-space-a-technique-to-physically-separate-a-liver-tumour-from-the-inferior-vena-cava-and-the-ostia-of-the-hepatic-veins
#11
Julien Garnon, Guillaume Koch, Jean Caudrelier, Emanuele Boatta, Pramod Rao, Maud Nouri-Neuville, Nitin Ramamurthy, Roberto Luigi Cazzato, Afshin Gangi
OBJECTIVE: To report a technique of percutaneous retrohepatic hydrodissection, highlighting its potential to physically separate liver tumours from the inferior vena cava (IVC) and the ostia of the hepatic veins (HV). MATERIALS AND METHODS: Between December 2017 and April 2018, hydrodissection of the retrohepatic IVC was performed in 5 patients (5 females; mean age 64.5 years) undergoing percutaneous ablation of 5 liver metastases (mean size: 3.6 cm) located adjacent to the IVC...
November 1, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30386882/ice-ball-crack-during-ct-guided-renal-cryoablation-using-1-5-mm-diameter-cryoprobes
#12
Yusuke Ichijo, Hiroshi Miura, Tatsuya Hirota, Tadashi Tanaka, Tatsuya Yoshikawa, Shunsuke Asai, Fumiya Hongo, Osamu Ukimura, Kei Yamada
Ice ball fracture and massive hemorrhage are serious complications associated with renal cryoablation. When cracks occur in an ice ball, it is usually associated with adjacent renal parenchymal fracture, leading to massive hemorrhage. However, few studies have examined ice ball fracture under image-guided percutaneous renal cryoablation. We herein describe an 80-year-old male patient who had undergone CT-guided cryoablation for a left renal tumor using four cryoprobes (1.5 mm diameter each). Ice ball cracks were observed on CT images during cryoablation...
November 1, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30382298/unusual-access-for-the-treatment-of-iliac-artery-aneurysm-in-association-with-type-ii-endoleak-after-endovascular-repair-of-an-aortoiliac-aneurysm
#13
Rohit Philip Thomas, Martin Köcher, Marie Černa, Petr Utíkal
Internal iliac artery aneurysms (IIAAs), although rare, are associated with a significant risk of mortality, if they rupture. Endovascular approach with exclusion of the aneurysm sac from antegrade and retrograde perfusion is proved to be a feasible treatment option. However, this option is not always technically possible with a preexisting endovascular aneurysm repair (EVAR) or surgical aortoiliac reconstruction with ligation of internal iliac artery origin. We report another safe treatment option of an enlarging IIAA associated with a type II endoleak after EVAR and a standard endovascular treatment was not possible...
October 31, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30374613/visibility-of-hypovascularized-liver-tumors-during-intra-arterial-therapy-using-split-bolus-single-phase-cone-beam-ct
#14
Martin Jonczyk, Federico Collettini, Dirk Schnapauff, Dominik Geisel, Georg Böning, Willie M Lüdemann, Gero Wieners, Bernd Hamm, Bernhard Gebauer
PURPOSE: To validate a split-bolus contrast injection protocol for single-phase CBCT in terms of detectability of hypovascular liver tumors compared to digital subtraction angiography (DSA). MATERIALS AND METHODS: In this retrospective, single-center study, 20 consecutive patients with in total 77 hypovascularized tumors referred for intra-arterial therapy received a split-bolus single-phase CBCT. Two readers rated the visibility of the target tumors scheduled for embolization in CBCT and DSA compared to the pre-interventional multiphasic CT or MRI used as reference on a 3-point scoring system (1 = optimal, 3 = not visible) and catheter-associated artifacts (1 = none, 3 = extended)...
October 29, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30374612/radiofrequency-ablation-of-the-marginal-venous-system-in-patients-with-venous-malformations
#15
W Uller, S Hammer, M Wildgruber, R Müller-Wille, H Goessmann, W A Wohlgemuth
PURPOSE: To evaluate radiofrequency ablation (RFA) for closure of marginal veins in pediatric and adult patients with venous malformations. MATERIALS AND METHODS: Medical records, imaging and procedure details were retrospectively reviewed in patients who underwent RFA of the marginal vein in a 17-month period. Additional sclerotherapy (n = 19) and coil embolization of the marginal vein were performed (n = 2). RESULTS: A total of 23 marginal veins were treated in 20 patients...
October 29, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30374611/prospective-study-on-total-fluoroscopic-time-in-patients-undergoing-uterine-artery-embolization-comparing-transradial-and-transfemoral-approaches
#16
Chloe Mortensen, John Chung, David Liu, Stephen Ho, Gerald Legiehn, Lindsay Machan, Darren Klass
PURPOSE: Comparing total fluoroscopy time (FT) to perform uterine artery embolization (UAE) with transradial approach (TRA) versus transfemoral approach (TFA). Our hypothesis was that there would be no significant procedural time penalty incurred, despite the learning curve associated with adopting a new approach. MATERIALS AND METHODS: A cohort study was undertaken including 66 consecutive patients undergoing UAE with either TRA/TFA between January and September 2015...
October 29, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30361959/focal-stenting-of-complex-femoropopliteal-lesions-with-the-multi-loc-multiple-stent-delivery-system-12-month-results-of-the-multicenter-locomotive-study
#17
Martin Sigl, Ulrich Beschorner, Thomas Zeller, Matthias Waliszewski, Ralf Langhoff, Jörg Tautenhahn, Klaus Amendt
INTRODUCTION: The purpose of this observational study is to report the 12-month clinical outcomes with the novel Multiple Stent Delivery System (MSDS) to treat complex femoropopliteal lesions. Previously, we reported the 6-month clinical outcomes of the all-comers LOCOMOTIVE study, which demonstrated the safety and efficacy of the MSDS with a favorable target lesion revascularization (TLR) rate of 5.3% and a 90.7% patency rate at 6 months in claudicants and critical limb ischemia patients...
October 25, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30357464/arterial-phase-cta-replacement-by-a-virtual-arterial-phase-reconstruction-from-a-venous-phase-cta-preliminary-results-using-detector-based-spectral-ct
#18
Anish A Patel, Patrick D Sutphin, Yin Xi, Suhny Abbara, Sanjeeva P Kalva
OBJECTIVE: To assess the feasibility of creating virtual monoenergetic arterial images from venous phase CTA obtained on a detector-based spectral CT scanner and quantitatively compare the signal-to-noise (SNR) and contrast-to-noise (CNR) ratios of the major arteries to those on polyenergetic true arterial phase images. METHODS: In this retrospective study, 23 patients (15 men and 8 women, median age 68 years) who underwent triple-phase CTA on a spectral CT scanner for aortic endograft surveillance were included...
October 24, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30350173/reiterative-radiofrequency-ablation-in-the-management-of-pediatric-patients-with-hepatoblastoma-metastases-to-the-lung-liver-or-bone
#19
Steven Yevich, Marco Calandri, Guillaume Gravel, Brice Fresneau, Laurence Brugières, Dominique Valteau-Couanet, Sophie Branchereau, Christophe Chardot, Isabelle Aerts, Thierry de Baere, Lambros Tselikas, Frederic Deschamps
BACKGROUND AND PURPOSE: Conventional treatments of systemic chemotherapy and surgical resection for recurrent or metastatic hepatoblastoma (HB) may be inhibitive for the pediatric patient and family who have already been through extensive therapies. This single-institution case series evaluates the safety and efficacy of percutaneous radiofrequency ablation (RFA) in the management of metastatic HB. MATERIALS AND METHODS: Between March 2008 and February 2015, RFA was used as part of multidisciplinary management for HB recurrence or metastasis in 5 children (median 5...
October 22, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/30334076/regarding-long-term-evaluation-of-percutaneous-groin-access-for-evar
#20
LETTER
Yahua Li, Jiangzhuang Ren, Xinwei Han
No abstract text is available yet for this article.
October 17, 2018: Cardiovascular and Interventional Radiology
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