Abstract:
:In this article, we study in vitro evaluation of needle artefacts and image quality for musculoskeletal laser-interventions in an open high-field magnetic resonance imaging (MRI) scanner at 1.0T with vertical field orientation. Five commercially available MRI-compatible puncture needles were assessed based on artefact characteristics in a CuSO4 phantom (0.1%) and in human cadaveric lumbar spines. First, six different interventional sequences were evaluated with varying needle orientation to the main magnetic field B0 (0 degrees to 90 degrees ) in a sequence test. Artefact width, needle-tip error, and contrast-to-noise ratio (CNR) were calculated. Second, a gradient-echo sequence used for thermometric monitoring was assessed and in varying echo times, artefact width, tip error, and signal-to-noise ratio (SNR) were measured. Artefact width and needle-tip error correlated with needle material, instrument orientation to B0, and sequence type. Fast spin-echo sequences produced the smallest needle artefacts for all needles, except for the carbon fibre needle (width <3.5 mm, tip error <2 mm) at 45 degrees to B0. Overall, the proton density-weighted spin-echo sequences had the best CNR (CNR(Muscle/Needle) >16.8). Concerning the thermometric gradient echo sequence, artefacts remained <5 mm, and the SNR reached its maximum at an echo time of 15 ms. If needle materials and sequences are accordingly combined, guidance and monitoring of musculoskeletal laser interventions may be feasible in a vertical magnetic field at 1.0T.
journal_name
Cardiovasc Intervent Radioljournal_title
Cardiovascular and interventional radiologyauthors
Wonneberger U,Schnackenburg B,Streitparth F,Walter T,Rump J,Teichgräber UKdoi
10.1007/s00270-009-9676-6subject
Has Abstractpub_date
2010-04-01 00:00:00pages
346-51issue
2eissn
0174-1551issn
1432-086Xjournal_volume
33pub_type
杂志文章abstract::Hepatocellular adenomas (HCAs) are benign liver lesions which may be complicated by spontaneous intratumoral bleeding, with or without rupture into the abdominal cavity, or malignant degeneration. Recent advances in radiological interventional techniques now offer selective transcatheter arterial embolization (TAE) as...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-007-9108-4
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:To investigate the accuracy, procedure time, fluoroscopy time, and dose area product (DAP) of needle placement during percutaneous vertebroplasty (PVP) using cone-beam computed tomography (CBCT) guidance versus fluoroscopy. MATERIALS AND METHODS:On 4 spine phantoms with 11 vertebrae (Th7-L5), 4 interventiona...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0598-y
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:To evaluate complications and their predictors in percutaneous transluminal angioplasty (PTA) of lower-limb arteries. METHODS:Complications in 410 angioplasty procedures in 295 consecutive patients (192 claudicants and 103 suffering from chronic critical ischemia) were prospectively analyzed. RESULTS:The tota...
journal_title:Cardiovascular and interventional radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s002709900281
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:To describe the technique and outcomes of mesenteric access under ultrasound guidance to perform portal vein recanalization-transjugular intrahepatic portosystemic shunt (PVR-TIPS). METHODS:Four patients (3 male: 1 female, mean age: 46.2 years; range 38-64 years) with portal vein thrombosis (PVT) and caverno...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-020-02713-0
更新日期:2020-11-23 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:BACKGROUND:This study aimed to evaluate the embolic properties, time to reperfusion, and histologic changes in temporary embolization of liver tissue with degradable starch microspheres (DSM) in a swine model. METHODS:In four adult minipigs, DSMs were injected into the right or left hepatic artery on the lobar level u...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-014-0966-2
更新日期:2015-04-01 00:00:00
abstract::The role of covered stent in the management of biliary complications is not yet defined in liver transplant recipients. This Case Report presents a patient with anastomotic stricture and leakage with biloma treated with a covered stent 32 months following liver transplantation. Signs of in-stent restenosis developed 5...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-009-9558-y
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVE:Cryoablation is being more and more often used to treat desmoid tumors. We report our experience of cryoablation as a local and analgesic treatment for inoperable or recurring desmoid tumors. METHODS:This study includes 34 patients who underwent percutaneous cryoablation of 41 desmoid tumors between July 201...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-019-02323-5
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:To evaluate safety and efficacy of uterine artery embolization using narrow-size-range polyphosphazene-coated hydrogel microspheres (Embozene, CeloNova Biosciences, Newnan, GA). METHODS:Between May 2006 and September 2008, a total of 121 consecutive patients (mean ± SD age 42.1 ± 5.4 years, range 30.5-51.5 yea...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-010-9986-8
更新日期:2011-04-01 00:00:00
abstract::Pulmonary parenchymal endometriosis is extremely rare and usually manifests itself with a recurrent hemoptysis associated with the menstrual cycle. The therapies proposed for women with endometriosis consist of medical treatments and surgery. Bronchial artery embolization has become a well-established and minimally in...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-007-9284-2
更新日期:2008-07-01 00:00:00
abstract::The current study retrospectively evaluated whether endovascular revascularization of chronically thrombosed and long-discarded vascular access sites for hemodialysis was feasible. Technical and clinical success rates, postintervention primary and secondary patency rates, and complications were reported. During a 1-ye...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-010-9926-7
更新日期:2011-04-01 00:00:00
abstract::Ergotism may cause isolated lower-extremity arterial stenoses that appear amenable to angioplasty but that will recur if the causative agent is not withdrawn. A case of femoral-popliteal stenosis caused by surreptitious ergot ingestion is presented. The lesion initially responded to angioplasty but quickly recurred, w...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02583301
更新日期:1987-01-01 00:00:00
abstract:PURPOSE:To compare pulse-spray to continuous-infusion thrombolysis with high-dose urokinase in thrombosed dialysis access grafts. METHODS:A prospective randomized controlled trial was performed. From August 1992 to September 1993, 30 thrombosed polytetrafluoroethylene (PTFE) grafts in 24 patients were included, 15 gra...
journal_title:Cardiovascular and interventional radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002709900229
更新日期:1998-03-01 00:00:00
abstract:PURPOSE:To compare the efficacy of catheter-directed thrombolysis (CDT) alone versus CDT with rheolytic percutaneous mechanical thrombectomy (PMT) for upper and lower extremity deep vein thrombosis (DVT). METHODS:A retrospective cohort of consecutive patients with acute iliofemoral or brachiosubclavian DVT treated wit...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-005-0341-4
更新日期:2006-11-01 00:00:00
abstract::Hydrofluoric acid (HF) is a colorless corrosive acid used in different industrial branches. Exposure to HF typically results from spills, and most often the hand or fingers are involved. Tissue damage through cutaneous HF exposure occurs through corrosive burns due to the free hydrogen ions and through skin penetratio...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-008-9361-1
更新日期:2009-01-01 00:00:00
abstract::This article provides an overview of the evolution of revascularization devices since Grüntzig's initial introduction of balloon angioplasty in 1977. In-stent restenosis (ISR) is the major shortcoming of conventional (permanent-implant) stent therapy; even with the innovation and promising benefits of drug-eluting ste...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,评审
doi:10.1007/s00270-004-0341-9
更新日期:2006-01-01 00:00:00
abstract::Aortitis includes conditions with infectious or non-infectious etiology, characterized by inflammatory changes in one or more layers in aortic wall. Age at onset, geographic predilections, distribution and pattern of involvement in aorta, its branches and pulmonary arteries, and systemic associations provide a clue to...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,评审
doi:10.1007/s00270-020-02486-6
更新日期:2020-12-01 00:00:00
abstract:PURPOSE:To evaluate the effects of neoadjuvant intra-arterial chemotherapy (NAIC) for locally advanced uterine cervical cancer, and to analyze factors influencing the response to the chemotherapy. METHODS:Thirty-four patients with invasive cervical cancer more than 4 cm in diameter were enrolled in this study. NAIC wa...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-003-0506-y
更新日期:2003-05-01 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:PURPOSE:Morton's neuroma (MN) is a leading cause of disability. The purpose of this study was to investigate the effectiveness of radiofrequency (RF) in patients with chronic pain refractory to conservative therapies. METHODS:Between September 2012 and December 2016, RF was performed on 52 patients. A sterile RF needl...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-017-1786-y
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:The effectiveness of angiography and embolization in diagnosis and treatment were assessed in a cohort of patients presenting with upper gastrointestinal hemorrhage secondary to hepatic artery pseudoaneurysm following laparoscopic cholecystectomy. METHODS:Over a 6-year period 1513 laparoscopic cholecystectomie...
journal_title:Cardiovascular and interventional radiology
pub_type: 临床试验,杂志文章
doi:10.1007/s002709900323
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:To evaluate the clinical use of covered and noncovered, knitted nitinol stents in patients presenting new stent indications. METHODS:Self-expandable, knitted nitinol stents were implanted in four patients for treatment of dysphagia. In two patients who had malignant strictures and had esophago-respiratory fist...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::Hepatic compartment syndrome is an increase in intrahepatic pressure sufficient to cause compromised hepatic perfusion. Early recognition and prompt management are essential for preventing catastrophic consequences including ischemic liver failure and hypovolemic shock. This is the rare case of laparoscopic adrenalect...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-018-02158-6
更新日期:2019-04-01 00:00:00
abstract:PURPOSE:To demonstrate the technical feasibility of the anterior approach to the coronal roof component of carefully selected acetabular fractures in computed tomography (CT)-navigated closed reduction and percutaneous fixation (CRPF). METHODS:Four patients with nondisplaced or slightly displaced coronal fractures of ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s002700010061
更新日期:2000-09-01 00:00:00
abstract::Nanotechnology can be defined as the design, creation, and manipulation of structures on the nanometer scale. This two-part review is intended to acquaint the interventionalist with the field of nanotechnology, and provide an overview of potential applications, while highlighting advances relevant to interventional ra...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,评审
doi:10.1007/s00270-010-9967-y
更新日期:2011-08-01 00:00:00
abstract::We performed percutaneously radiofrequency (RF) ablation of 5 renal cell carcinomas (mean diameter 26 +/- 15 mm) with computed-tomography (CT) fluoroscopic guidance using the transhepatic route. The RF electrode was successfully advanced into all tumors. RF ablation caused one minor complication (small asymptomatic pe...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-007-9037-2
更新日期:2007-07-01 00:00:00
abstract::Anomalous pulmonary venous return represents a rare congenital anomaly with wide anatomic and physiologic variability. We report a case of the newborn with a rare form of total infracardiac anomalous pulmonary venous connection (TAPVC). The pulmonary veins draining both lungs formed two vertical veins, which joined to...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02563905
更新日期:1996-03-01 00:00:00
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::The clinical application of hybrid subtraction in digital fluoroscopy of the vasculature is reported in our first 30 patients studied. Hybrid subtraction combines the advantages of temporal and dual energy subtraction techniques to achieve simultaneous elimination of overlying bone, soft tissue, and motion induced art...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02552450
更新日期:1983-01-01 00:00:00
abstract:PURPOSE:Congenital hemophilia is a hereditary bleeding disorder that affects 1 in 5,000 males and is characterized by repetitive musculoskeletal bleeding episodes. Selective embolization of the knee and elbow arteries can prevent bleeding episodes. To evaluate the long-term efficacy of these procedures, we assessed the...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-012-0480-3
更新日期:2013-08-01 00:00:00