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Intravascular ultrasound guidance

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https://www.readbyqxmd.com/read/28197870/intravascular-ultrasound-guidance-of-percutaneous-coronary-intervention-in-ostial-chronic-total-occlusions-a-description-of-the-technique-and-procedural-results
#1
Nicola Ryan, Nieves Gonzalo, Philip Dingli, Oscar Vedia Cruz, Pilar Jiménez-Quevedo, Luis Nombela-Franco, Ivan Nuñez-Gil, María Del Trigo, Pablo Salinas, Carlos Macaya, Antonio Fernandez-Ortiz, Javier Escaned
Inability to cross the lesion with a guidewire is the most common reason for failure in percutaneous revascularization (PCI) of chronic total occlusions (CTOs). An ostial or stumpless CTO is an acknowledged challenge for CTO recanalization due to difficulty in successful wiring. IVUS imaging provides the opportunity to visualize the occluded vessel and to aid guidewire advancement. We review the value of this technique in a single-centre experience of CTO PCI. This series involves 22 patients who underwent CTO-PCI using IVUS guidance for stumpless CTO wiring at our institution...
February 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28120559/the-effect-of-sex-and-anthropometry-on-clinical-outcomes-in-patients-undergoing-percutaneous-coronary-intervention-for-complex-coronary-lesions
#2
Seung Yul Lee, Dong Ho Shin, Jung Sun Kim, Byeong Keuk Kim, Young Guk Ko, Donghoon Choi, Yangsoo Jang, Myeong Ki Hong
PURPOSE: To evaluate the effects of sex and anthropometry on clinical outcomes in patients who underwent percutaneous coronary intervention (PCI). MATERIALS AND METHODS: From three randomized trials (REal Safety and Efficacy of 3-month dual antiplatelet Therapy following Endeavor zotarolimus-eluting stent implantation, Impact of intraVascular UltraSound guidance on outcomes of Xience Prime stents in Long lesions, Chronic Total Occlusion InterVention with drUg-eluting Stents), we compared 333 pairs of men and women matched by propensity scores, all of whom underwent intravascular ultrasound (IVUS)-guided PCI for complex lesions...
March 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28111644/3d-ultrasonic-needle-tracking-with-a-1-5d-transducer-array-for-guidance-of-fetal-interventions
#3
Wenfeng Xia, Simeon J West, Jean-Martial Mari, Sebastien Ourselin, Anna L David, Adrien E Desjardins
Ultrasound image guidance is widely used in minimally invasive procedures, including fetal surgery. In this context, maintaining visibility of medical devices is a significant challenge. Needles and catheters can readily deviate from the ultrasound imaging plane as they are inserted. When the medical device tips are not visible, they can damage critical structures, with potentially profound consequences including loss of pregnancy. In this study, we performed 3D ultrasonic tracking of a needle using a novel probe with a 1...
October 2016: Medical Image Computing and Computer-assisted Intervention: MICCAI ..
https://www.readbyqxmd.com/read/27987616/deep-venous-thrombosis-associated-with-caval-extension-of-iliac-stents
#4
Erin H Murphy, Blake Johns, Elliot Varney, William Buck, Arjun Jayaraj, Seshadri Raju
BACKGROUND: It is generally difficult to place an iliac vein stent precisely at the iliocaval junction with venographic control or even with intravascular ultrasound guidance. Furthermore, mechanical properties of the Wallstent (Boston Scientific, Marlborough, Mass) can predispose precisely placed stents to distal displacement or stent collapse. Our center has thus advocated extending Wallstents 3 to 5 cm into the inferior vena cava to prevent complications of missed proximal lesions or stent migration...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27986390/severe-thrombocytopenia-induced-by-iodinated-contrast-after-coronary-angiography-the-use-of-gadolinium-contrast-and-intravascular-ultrasound-as-an-alternative-to-guide-percutaneous-coronary-intervention
#5
José María Cubero-Gómez, Francisco J Guerrero Márquez, Luis Diaz-de la-Llera, Mónica Fernández-Quero, Agustín Guisado-Rasco, Manuel Villa-Gil-Ortega
Acute contrast-induced thrombocytopenia is a rare event with the use of modern low osmolarity iodinated contrast media. The pathophysiological mechanism that causes platelet counts to drop has not been identified, but an immunological mechanism is suspected due to cytotoxicity after previous exposure to contrast. We report the case of a 47-year-old male patient with acute severe thrombocytopenia due to iodinated contrast media exposure. His platelet count after the procedure with the highest amount of contrast was zero, which is the lowest reported platelet count to date...
January 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/27969948/tct-577-intravascular-ultrasound-guidance-during-percutaneous-coronary-intervention-using-second-generation-drug-eluting-stents-improves-clinical-outcomes-and-reduces-restenosis-rates-a-comparative-8-265-patient-meta-analysis
#6
Kunal Verma, Caitlin Cheshire, Nitesh Nerlekar, Liam McCormick, James Cameron, Martin Bennett, Ian Meredith, Adam Brown
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27969924/tct-555-intravascular-ultrasound-guidance-improves-the-long-term-prognosis-in-patients-with-unprotected-left-main-coronary-artery-disease-undergoing-percutaneous-coronary-intervention
#7
Yida Tang, Jian Tian, Changdong Guan, Wenyao Wang, Kuo Zhang, Jue Chen, Yongjian Wu, Hongbing Yan, Yanyan Zhao, Shubin Qiao, Yuejin Yang, Gary Mintz, Bo Xu
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27895243/contrast-less-stent-placement-for-vertebral-artery-origin-stenosis
#8
Shinzo Ota, Yoshinobu Sekihara, Takahiro Himeno, Yasue Tanaka, Tatsuya Ohtonari
We performed stent placement under intravascular ultrasound (IVUS), without the use of contrast medium, in a male patient in his 70s who had vertebral artery origin stenosis and decreased renal function. Satisfactory dilatation was achieved without complications, and the patient remained asymptomatic at 2 years of follow-up. We now report the details of this procedure. Stent placement under IVUS guidance may be useful in patients in whom contrast medium is contraindicated.
February 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27862314/impact-of-diabetes-mellitus-on-intravascular-ultrasound-guided-provisional-stenting-in-coronary-bifurcation-lesions-j-reverse-sub-study
#9
Masahiro Yamawaki, Daisuke Terashita, Hachidai Takahashi, Toshiro Shinke, Kenichi Fujii, Yoshihisa Shimada, Yoshihiro Takeda, Shinichiro Yamada, Yoshihisa Kinoshita, Yoshinobu Murasato
OBJECTIVE: To investigate the impact of diabetes mellitus (DM) on provisional coronary bifurcation stenting under the complete guidance of intravascular-ultrasound (IVUS). BACKGROUND: The efficacy of such intervention has not yet been fully elucidated in the DM patients. METHODS: A total of 100 DM and 139 non-DM patients in a prospective multi-center registry of IVUS-guided bifurcation stenting were compared in angiographic results at 9 months...
December 2016: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/27822889/intravascular-ultrasound-guided-drug-eluting-stent-implantation
#10
REVIEW
Tadayuki Kadohira, Yoshio Kobayashi
Intravascular ultrasound (IVUS) is a reliable imaging tool to guide percutaneous coronary intervention. There has been increasing evidence supporting the clinical utility of IVUS-guided drug-eluting stent (DES) implantation, including randomized trials, observational studies, and meta-analyses of both. IVUS provides cross-sectional views of the coronary artery wall, and allows us to assess stenosis severity, identify plaque morphology, optimize stent implantation, and understand mechanism of stent failure. IVUS guidance can increase DES efficacy and decrease clinical events...
November 7, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27806900/optical-coherence-tomography-compared-with-intravascular-ultrasound-and-with-angiography-to-guide-coronary-stent-implantation-ilumien-iii-optimize-pci-a-randomised-controlled-trial
#11
Ziad A Ali, Akiko Maehara, Philippe Généreux, Richard A Shlofmitz, Franco Fabbiocchi, Tamim M Nazif, Giulio Guagliumi, Perwaiz M Meraj, Fernando Alfonso, Habib Samady, Takashi Akasaka, Eric B Carlson, Massoud A Leesar, Mitsuaki Matsumura, Melek Ozgu Ozan, Gary S Mintz, Ori Ben-Yehuda, Gregg W Stone
BACKGROUND: Percutaneous coronary intervention (PCI) is most commonly guided by angiography alone. Intravascular ultrasound (IVUS) guidance has been shown to reduce major adverse cardiovascular events (MACE) after PCI, principally by resulting in a larger postprocedure lumen than with angiographic guidance. Optical coherence tomography (OCT) provides higher resolution imaging than does IVUS, although findings from some studies suggest that it might lead to smaller luminal diameters after stent implantation...
November 26, 2016: Lancet
https://www.readbyqxmd.com/read/27756119/two-year-clinical-outcomes-in-stable-angina-and-acute-coronary-syndrome-after-percutaneous-coronary-intervention-of-left-main-coronary-artery-disease
#12
Dae Young Hyun, Myung Ho Jeong, Doo Sun Sim, Yun Ah Jeong, Kyung Hoon Cho, Min Chul Kim, Hyun Kuk Kim, Hae Chang Jeong, Keun Ho Park, Young Joon Hong, Jun Han Kim, Youngkeun Ahn, Jung Chaee Kang
BACKGROUND/AIMS: This study appraised the long term clinical outcomes of patients treated with percutaneous coronary intervention (PCI) for unprotected left main coronary artery (ULMCA) disease. There are limited data regarding long-term clinical outcomes after PCI for ULMCA disease. METHODS: From 2001 to 2011, a total of 448 patients who underwent PCI for ULMCA disease and had 2-year clinical follow-up, were analyzed. The study patients were divided into two groups: group I (stable angina pectoris [SAP], n = 60, 48 men, 62 ± 10 years) and group II (acute coronary syndrome [ACS], n = 388, 291 men, 64 ± 10 years)...
November 2016: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/27744039/effects-of-intravascular-ultrasound-guided%C3%A2-versus-angiography-guided-new-generation-drug-eluting-stent-implantation-meta-analysis-with-individual-patient-level-data%C3%A2-from%C3%A2-2-345%C3%A2-randomized-patients
#13
Dong-Ho Shin, Sung-Jin Hong, Gary S Mintz, Jung-Sun Kim, Byeong-Keuk Kim, Young-Guk Ko, Donghoon Choi, Yangsoo Jang, Myeong-Ki Hong
OBJECTIVES: The aim of this study was to evaluate the clinical usefulness of intravascular ultrasound (IVUS)-guided new-generation drug-eluting stent (DES) implantation using a meta-analysis of individual patient-level data from randomized trials. BACKGROUND: Published randomized trials that compare IVUS-guided versus angiography-guided new-generation DES implantation are scarce. METHODS: Searches of the MEDLINE, Embase, and Cochrane databases were performed to find randomized trials that compared IVUS-guided versus angiography-guided new-generation DES implantation...
November 14, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27725364/clinical-outcomes-of-the-intraluminal-approach-for-long-occlusive-femoropopliteal-lesions-assessed-by-intravascular-ultrasound
#14
Shinsuke Mori, Keisuke Hirano, Yoshiaki Ito, Masahiro Yamawaki, Motoharu Araki, Norihiro Kobayashi, Hideyuki Takimura, Yasunari Sakamoto, Masakazu Tsutsumi, Takuro Takama, Yohsuke Honda, Takahiro Tokuda, Kenji Makino, Shigemitsu Shirai
AIM: To investigate the relationship between intravascular ultrasound (IVUS) findings and restenosis after stent implantation for long occlusive femoropopliteal (FP) lesions using the intraluminal approach. METHODS: This was a single-center retrospective study of 45 patients (49 lesions) with de novo long occlusive FP lesions treated with bare metal stents implanted using the intraluminal approach under IVUS guidance from April 2007 to December 2014. All patients were followed up at least 12 months...
October 1, 2016: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/27628609/zero-contrast-coronary-intervention-using-intravascular-ultrasound-guidance-in-a-patient-with-allergy-to-contrast-medium
#15
Masakazu Nagaoka, Naoko Tsumuraya, Masaki Nie, Yuji Ikari
The occurrence of allergy to iodinated contrast in certain patients may prevent the use of percutaneous coronary intervention (PCI) in such cases. We present a 53-year-old male with a history of allergic reaction to iodinated contrast who successfully underwent intravascular ultrasound (IVUS) guided PCI. Stent size was determined based on IVUS. After PCI, stent expansion and a lack of edge dissection or incomplete apposition were confirmed by IVUS. Thus, PCI without contrast injection under IVUS may be feasible in selected patients with allergy to iodinated contrast...
September 20, 2016: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/27581130/comparison-of-inferior-vena-cava-filters-placed-at-the-bedside-via-intravenous-ultrasound-ivus-guidance-versus-fluoroscopic-guidance
#16
Suvranu Ganguli, Beau M Hawkins, Farhad Abtahian, Mazen S Abu-Fadel, Thomas G Walker, Cheryl MacKay, Michael R Jaff, Ido Weinberg
OBJECTIVES: To compare utilization, procedural outcomes, complications and long-term patient outcomes associated with bedside placement of inferior vena cava filters (IVCF) using intravascular ultrasound (IVUS) and fluoroscopic placement of IVCF. BACKGROUND: IVCF are usually placed under fluoroscopic-guidance in dedicated angiography suites. Bedside placement of IVCF is possible in patients not suitable for transportation, but data regarding their use are limited...
August 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27414021/bioresorbable-vascular-scaffold-use-for-coronary-bifurcation-lesions-a-substudy-from-ghost-eu-registry
#17
Toru Naganuma, Antonio Colombo, Maciej Lesiak, Davide Capodanno, Tommaso Gori, Holger Nef, Giuseppe Caramanno, Christoph Naber, Carlo Di Mario, Neil Ruparelia, Piera Capranzano, Jens Wiebe, Aleksander Araszkiewicz, Salvatore Geraci, Hiroyoshi Kawamoto, Stelios Pyxaras, Alessio Mattesini, Thomas Münzel, Corrado Tamburino, Azeem Latib
OBJECTIVES: The aim of this study was to evaluate midterm outcomes of bioresorbable vascular scaffolds (BVS) implanted in bifurcation lesions. BACKGROUND: BVS have emerged as an alternative to conventional metallic drug-eluting stents for the treatment of coronary complex lesions. METHODS: Between November 2011 and January 2014, 1189 patients underwent percutaneous coronary intervention with BVS at 10 European centers (GHOST EU registry). Of these, 289 consecutive patients (302 bifurcation lesions) treated with either single-stenting (n = 260) or double-stenting (n = 42) were evaluated...
January 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27388794/ultrasound-indications-for-chronic-pain-management-an-update-on-the-most-recent-evidence
#18
Donald C Perrine, Gina Votta-Velis, Alain Borgeat
PURPOSE OF REVIEW: The ability of ultrasound to provide detailed anatomic visualization while avoiding radiation exposure continues to make it an appealing tool for many practitioners of chronic pain management. This review will present the most recent evidence regarding the use of ultrasound-guidance for the performance of interventional procedures in the treatment of chronic pain. RECENT FINDINGS: For a variety of different procedures, studies continue to compare ultrasound-guided techniques to commonly used fluoroscopic or landmark-based techniques...
October 2016: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/27363298/utility-of-intravascular-us-guided-portal-vein-access-during-transjugular-intrahepatic-portosystemic-shunt-creation-retrospective-comparison-with-conventional-technique-in-109-patients
#19
Anil K Pillai, Brice Andring, Nicholas Faulconer, Stephen P Reis, Yin Xi, Ikponmwosa Iyamu, Patrick D Suthpin, Sanjeeva P Kalva
PURPOSE: To compare safety and effectiveness of intravascular ultrasound (US)-guided portal vein access during transjugular intrahepatic portosystemic shunt (TIPS) creation with conventional TIPS technique. MATERIALS AND METHODS: In this retrospective study, TIPS creation using intravascular US guidance in 55 patients was compared with conventional TIPS creation in 54 patients by 10 operators over a 3-year period. Operators were classified as experienced if they had performed ≥ 20 TIPS procedures at the beginning of the study period...
August 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27323357/registration-methods-for-ivus-transversal-and-longitudinal-transducer-motion-compensation
#20
Gonzalo D Maso Talou, Pablo J Blanco, Ignacio Larrabide, Cristiano Guedes Bezerra, Pedro A Lemos, Raul A Feijoo
OBJECTIVE: Intravascular ultrasound is a fundamental imaging technique for atherosclerotic plaque assessment, interventionist guidance and, ultimately, as a tissue characterization tool. The studies acquired by this technique present the spatial description of the vessel during the cardiac cycle. However, the study frames are not properly sorted. As gating methods deal with the cardiac phase classification of the frames, the gated studies lack motion compensation between vessel and catheter...
June 15, 2016: IEEE Transactions on Bio-medical Engineering
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