Abstract:
PURPOSE:To investigate the influence that measurement of balloon volume as a controlled variable in addition to balloon pressure has on the outcome of balloon angioplasty in an experimental model. METHODS:One hundred and three segments of explanted normal porcine carotid arteries were obtained. Five were used as controls, and the remaining 98 were subjected to balloon angioplasty with simultaneous measurement of balloon volume and pressure. These arteries were randomized into two groups. In one group the endpoint of the angioplasty was determined by balloon pressure (pressure-limited group, PLG) and in the other group by balloon volume (volume-limited group, VLG). Pressure/volume curves for each procedure were constructed by continuous measurement of both parameters by a purpose-designed computer-controlled inflation device. The diameter of each arterial segment was measured by intravascular ultrasound (IVUS) and the ratio of the inflated balloon to arterial diameter calculated. Arterial appearances after angioplasty were recorded using IVUS. RESULTS:The balloon volumes measured at the endpoint of angioplasty were significantly smaller in the PLG compared with the VLG (p < 0.001). Three types of pressure/volume curves were identified: A, B, and C. In the type A curves, IVUS identified fissures in 28% (17/60) and the examination was normal in 72% (43/60). In the type B curves, IVUS identified fissures in 44% (4/9), dissections in 22% (2/9), and the examination was normal in 33% (3/9). In the type C curves, IVUS identified fissures in 44% (4/9) and dissection in 56% (5/9) with no normal examinations. In undamaged arterial segments a very high correlation was achieved between balloon volume and the balloon/artery ratio (Pearson correlation = -0.979, R(2) = 0.957, p < 0.0001, n = 27). CONCLUSION:The measurement of pressure and volume during angioplasty enabled the construction of pressure/volume curves that showed deviations from the curves obtained in air. The balloon volume results, and significant deviation of the curve shape from the control curve shape, predicted vessel damage, which was confirmed by the IVUS appearance of the vessel after angioplasty. When pressure was used as the endpoint of balloon inflation the balloons were significantly underdilated compared with the manufacturer's nominal sizes. These data indicate that monitoring of pressure and volume during angioplasty may provide an alternative method of predicting vessel damage.
journal_name
Cardiovasc Intervent Radioljournal_title
Cardiovascular and interventional radiologyauthors
Shehab M,Michalis LK,Rees MRdoi
10.1007/s00270-007-9193-4subject
Has Abstractpub_date
2008-01-01 00:00:00pages
149-57issue
1eissn
0174-1551issn
1432-086Xjournal_volume
31pub_type
杂志文章abstract:PURPOSE:To evaluate the patency and clinical efficacy of percutaneous intraductal microwave ablation (PIMWA) and uncovered self-expandable metallic stents (USEMs) in inoperable malignant extrahepatic biliary obstruction. MATERIALS AND METHODS:The procedures to be performed on patients with malignant inoperable extrahe...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-020-02684-2
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVES:This study was designed to determine the effectiveness of a percutaneously inserted coil as a landmark before radiofrequency ablation (RFA) of poorly visible liver tumors on unenhanced computed tomography and ultrasound. METHODS:This was a single-center, retrospective study of 46 consecutive patients treate...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0717-9
更新日期:2014-06-01 00:00:00
abstract:PURPOSE:To present our experience performing percutaneous cholangioscopy in the management of 25 patients with biliary disease. METHODS:During the last 3 years, 26 percutaneous cholangioscopies were performed in 25 patients with common bile duct disease (n = 16), intrahepatic ducts disease (n = 6), and gallbladder dis...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s002700010100
更新日期:2000-11-01 00:00:00
abstract::In a 58-year-old man acute aortic dissection compromised the origin of the superior mesenteric artery (SMA), resulting in mesenteric ischemia. After failed balloon angioplasty a Gianturco Z-stent was placed. The stenosis improved immediately, followed by resolution of the clinical signs of mesenteric ischemia. SMA flo...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s002709900214
更新日期:1998-01-01 00:00:00
abstract::A novel coaxial catheter system for ultrasound (US)-guided, pulsed laser angioplasty was tested clinically in 4 patients with stenoses of the femoral and external iliac artery. The mean lesion length was 1.3 +/- 0.4 cm. The 9F multifiber laser catheter incorporated a 4.8F commercial intravascular US catheter and can b...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02602985
更新日期:1993-03-01 00:00:00
abstract:PURPOSE:This study was designed to evaluate retrospectively the results of complex iliac artery aneurysm (IAA) exclusion using the Cardiatis-Multilayer-Stent. METHODS:Between October 2010 and August 2012, ten IAAs were treated in eight males (mean age 75 (59-91) years) using the Multilayer Stent. All IAA exceeded a di...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00270-013-0639-6
更新日期:2013-08-01 00:00:00
abstract::The purpose of this article is to present the early results of a multicentre trial using HepaSphere microspheres loaded with chemotherapeutic agents for transarterial chemoembolization (TACE) in patients with unresectable hepatocellular carcinoma. From December 2005 to March 2007, 50 patients (36 male and 14 female, m...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00270-008-9409-2
更新日期:2008-11-01 00:00:00
abstract:PURPOSE:Resection is the mainstay of management in patients with sarcoma lung metastases, but there is a limit to how many resections can be performed. Some patients with inoperable disease have small-volume lung metastases that are amenable to thermal ablation. We report our results after radiofrequency ablation (RFA)...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0644-9
更新日期:2014-02-01 00:00:00
abstract:PURPOSE:The aim of this study is to evaluate the feasibility of percutaneous lung tumor biopsy under cone beam-computed tomography (CBCT) with PET-CT imaging fusion. MATERIALS AND METHODS:Eleven patients (four women and seven men) underwent C-arm CBCT lung biopsy with PET-CT fusion imaging. A preprocedural PET-CT scan...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-019-02270-1
更新日期:2019-11-01 00:00:00
abstract::During the placement of a Gianturco coil in a patient with renal cell carcinoma, the cotton threads of the steel coil remained fixed to the introducing catheter tip, and the coil was unintentionally withdrawn from the selected renal artery back into the aorta. By snare technique the coil was caught with another angiog...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02551979
更新日期:1980-01-01 00:00:00
abstract::We report a rare anomaly consisting of a right aortic arch with an isolated left innominate artery in an elderly man without congenital heart disease. ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s002709910011
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:To determine the influence of preoperative aneurysmal thrombus quantity and distribution on the development of type II endoleak with aneurysm sac enlargement after endovascular aneurysm repair (EVAR). MATERIALS AND METHODS:We retrospectively analyzed the pre- and postoperatively performed CT scans of 118 patie...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-016-1386-2
更新日期:2016-08-01 00:00:00
abstract::We report the case of a young break-dancer presenting with hammer syndrome. This syndrome has been correlated with many professional and recreational activities but this is, to our knowledge, the first description of hammer syndrome caused by break-dancing. The etiology, diagnosis and treatment modalities of this rare...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-002-1932-y
更新日期:2002-07-01 00:00:00
abstract::Two cases of spontaneous lysis of arterial thrombi are described. The occurrence of spontaneous thrombolysis and the relative ease of performing Fogarty embolectomy (thrombectomy) in peripheral arteries should be considered along with the clinical status of a patient who is viewed as a possible candidate for thromboly...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02552672
更新日期:1984-01-01 00:00:00
abstract: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 demographi...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-018-2066-1
更新日期:2018-12-01 00:00:00
abstract:PURPOSE:Evaluation of patient radiation exposure during uterine artery embolization (UAE) and literature review to identify techniques minimizing required dose. METHODS:A total of 224 of all included 286 (78 %) women underwent UAE according to a standard UAE-protocol (bilateral UAE from unilateral approach using a Rös...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-014-0962-6
更新日期:2015-06-01 00:00:00
abstract::Esophageal stent fractures occur quite rarely. A 61-year-old male patient was previously treated for rupture of benign stenosis, occurring after dilatation, by implanting an esophageal stent. However, a year after implantation, the patient suffered from dysphagia caused by the broken esophageal stent. He was treated w...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-009-9648-x
更新日期:2010-06-01 00:00:00
abstract:PURPOSE:The purpose of this study is national-level comparison of the endovascular (EVAR) and open repair (OAR) of ruptured abdominal aortic aneurysm (AAA) in the United States from 2001 to 2010. METHODS:The data were obtained from nationwide inpatient sample from the Department of Health and Human Services. Ruptured ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0665-4
更新日期:2014-04-01 00:00:00
abstract::Atresia of the coronary sinus (ACS) is a rare congenital anomaly. When associated with persistent left superior vena cava (PLSVC), this defect could have no significant hemodynamic effect, and the patient might remain asymptomatic. However, vascular interventions might induce changes or complications that could show t...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0719-7
更新日期:2014-06-01 00:00:00
abstract::The purpose of this study was to evaluate the safety and efficacy of TACE with microspheres preloaded with doxorubicin in unresectable intrahepatic cholangiocarcinoma (UCH). Twenty patients with UCH were observed; 9 refused, preferring other palliative care or chemotherapy, and 11 agreed to be treated with one or more...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-008-9336-2
更新日期:2008-09-01 00:00:00
abstract:PURPOSE:The prospective randomized multicenter Freeway study evaluated the possible hemodynamic and clinical benefits of primary stent insertion followed by percutaneous transluminal angioplasty (PTA) with drug-eluting balloons (DEB) over post-stent insertion PTA with standard balloons in the treatment of symptomatic f...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00270-019-02309-3
更新日期:2019-11-01 00:00:00
abstract:PURPOSE:Complete biliary occlusions at different anatomic locations that are not amenable to surgical, endoscopic, or routine percutaneous methods pose a challenge to physicians. Biliary ductal neoanastomosis technique can play a very important role in solving such clinical problems. MATERIALS:Between October 2004 and...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-020-02544-z
更新日期:2020-11-01 00:00:00
abstract:PURPOSE:This study was designed to determine the effectiveness of percutaneous balloon dilation and long-term drainage of postoperative benign biliary strictures. METHODS:Medical records of patients with postoperative benign biliary strictures, in whom percutaneous transhepatic biliary drainage (PTBD) and balloon dila...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-014-0836-y
更新日期:2014-12-01 00:00:00
abstract::The diameters of the pulmonary veins at their atrial junction were measured from cineangiocardiographic films in 27 children (mean height 128.5 cm) without heart disease. Right upper pulmonary veins and right lower pulmonary veins were measured in all 27 films. The left upper pulmonary veins could be measured in 23 ch...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02575426
更新日期:1989-11-01 00:00:00
abstract::Stomal variceal bleeding can develop in patients with underlying cirrhosis and portal hypertension. Most patients are best treated with transjugular intrahepatic portosystemic shunt (TIPS) creation because this addresses the underlying problem of portal hypertension. However, some patients are not good candidates for ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-009-9536-4
更新日期:2010-02-01 00:00:00
abstract::Methods for calculating the activity to be administered during yttrium-90 radioembolization (RE) are largely based on empirical toxicity and efficacy analyses, rather than dosimetry. At the same time, it is recognized that treatment planning based on proper dosimetry is of vital importance for the optimization of the ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,评审
doi:10.1007/s00270-014-1042-7
更新日期:2015-04-01 00:00:00
abstract:PURPOSE:Long-term data on aneurysm treatment with flow-diverting stents are still sparse, and follow-up protocols differ widely between institutions. We present long-term results, with a focus on the usefulness of contrast-enhanced MR angiography (ceMRA). MATERIALS AND METHODS:Interventions and follow-up imaging of pa...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-017-1732-z
更新日期:2017-11-01 00:00:00
abstract::When compared in a uterine artery embolization (UAE) animal model, Embospheres (ES) (Biosphere Medical, Rockland, MA) were found to induce less uterine ischemia than polyvinyl alcohol (PVA) particles. Given this finding, we aimed to test the hypothesis that ES is associated with less pain after UAE than PVA in human p...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-003-0045-6
更新日期:2003-07-01 00:00:00
abstract::We report our experience with Günter Tulip filter placement indications, retrievals, and procedural problems, with emphasis on alternative retrieval techniques. We have identified 92 consecutive patients in whom a Günter Tulip filter was placed and filter removal attempted. We recorded patient demographic information,...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-009-9684-6
更新日期:2010-08-01 00:00:00
abstract:PURPOSE:To develop a new coaxial balloon catheter system and evaluate its clinical feasibility for balloon-occluded retrograde transvenous obliteration (B-RTO). METHODS:A coaxial balloon catheter system was constructed with 9 Fr guiding balloon catheter and 5 Fr balloon catheter. A 5 Fr catheter has a high flexibility...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-005-0039-7
更新日期:2006-11-01 00:00:00