Abstract:
OBJECTIVE:The purpose of this study was to assess the diagnostic value and safety of the contrast agent gadoterate meglumine (Gd-DOTA, DOTAREM, Guerbet, Roissy CdG Cedex, France) in the setting of a postmarketing surveillance study. MATERIALS AND METHODS:Between January 2004 and October 2005, radiologists in 61 radiologic institutions were asked to document the routine use of Gd-DOTA in a questionnaire. In addition to assessing the image quality and diagnostic value of the contrast-enhanced magnetic resonance imaging scans, we statistically evaluated and analyzed demographic and safety data. RESULTS:A total of 24,308 patients were intravenously injected with Gd-DOTA for various diagnostic examinations. The examination allowed for establishing a diagnosis in >99% of cases and image quality was rated as "excellent" or "good" in 97.5% of all cases. Adverse events were noted in only 0.4% of the examinations and were mostly rated as minor, such as feeling of warmth or taste alteration. There was one serious adverse event, albeit with complete recovery. CONCLUSION:This postmarketing surveillance study suggests diagnostic efficacy and a favorable clinical safety profile of Gd-DOTA in clinical practice.
journal_name
Invest Radioljournal_title
Investigative radiologyauthors
Herborn CU,Honold E,Wolf M,Kemper J,Kinner S,Adam G,Barkhausen Jdoi
10.1097/01.rli.0000248893.01067.e5subject
Has Abstractpub_date
2007-01-01 00:00:00pages
58-62issue
1eissn
0020-9996issn
1536-0210pii
00004424-200701000-00008journal_volume
42pub_type
杂志文章abstract::The rate at which isotopes descend from the cisterna magna to the lumbar subarachnoid space is highly variable. In monkeys, with and without previous lumbar puncture, transit time was measured. In animals with a previous lumbar puncture, transit times were 10 to 120 minutes; in monkeys without a previous lumbar punctu...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198805000-00005
更新日期:1988-05-01 00:00:00
abstract::Flow measurements can be made with computed tomography (CT) scanners using iodinated, nonionic contrast media as a first-pass indicator. Ultrafast CT (UFCT) is an ideal machine to make these measurements because of its short scan time (50 mseconds) and interscan delay (< or = 0.6 seconds). Additionally, UFCT can acqui...
journal_title:Investigative radiology
pub_type: 杂志文章,评审
doi:10.1097/00004424-199212002-00004
更新日期:1992-12-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The authors used gadolinium (Gd) chelate as a T1, T2, and T2* enhancing agent in reperfused myocardial infarction to compare the appearance of reperfused myocardial infarction on spin echo and gradient echo magnetic resonance (MR) sequences. METHODS:Rats (n = 28) were subjected to reperfused m...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199807000-00002
更新日期:1998-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Laser-induced interstitial thermotherapy (LITT) may become an attractive modality for minimally invasive tumor therapy. Magnetic resonance imaging (MRI) could be used to assist this procedure. METHODS:A T1-weighted turbo fast low-angle shot (FLASH) sequence for on-line monitoring of the laser-...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199403000-00015
更新日期:1994-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To present the results of two studies conducted to evaluate the pharmacokinetics and safety of iomeprol in healthy volunteers and in patients with various degrees of renal impairment. METHODS:In these two open-label, single-dose, phase I studies, a 50-mL dose of iomeprol 400 was administered i...
journal_title:Investigative radiology
pub_type: 临床试验,杂志文章
doi:10.1097/00004424-200106000-00002
更新日期:2001-06-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To develop a simple and robust helium3 polarization system dedicated to small animal imaging. To demonstrate the potential of helium3 imaging for pulmonary ventilation and perfusion studies. METHODS:A home-built polarization system based on spin-exchange technique was used. This system was app...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to investigate the impact of a novel iterative denoising and image enhancement technique in T1-weighted precontrast and postcontrast volume-interpolated breath-hold examination (VIBE) of the abdomen on image quality, noise levels, and diagnostic confidence without change of acquisit...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0000000000000746
更新日期:2020-11-18 00:00:00
abstract:RATIONALE AND OBJECTIVES:Iopromide is a new monomeric, nonionic contrast agent that exhibits low osmolality and low viscosity in high concentration in aqueous solutions. Double-blind, randomized clinical trials have established the efficacy, safety, and tolerance of iopromide for excretory urography, coronary angiograp...
journal_title:Investigative radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004424-199405001-00015
更新日期:1994-05-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To test noninvasive inductive heating of implanted vascular stents as an alternative approach for reduction or prevention of neointimal hyperplasia. METHODS:Calorimetric pretests were performed to get an orientation on the different parameters of influence for inductive heating of stents. The ...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000117881.42422.72
更新日期:2004-05-01 00:00:00
abstract::The study aim was to define potential differences and advantages in magnetic resonance (MR) patterns of tumoral contrast enhancement using either a small molecular, extracellular fluid contrast enhancer [Gd-DTPA] or a macromolecular agent [albumin-(Gd-DTPA)20], designed for primary intravascular biodistribution. MR im...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198908000-00007
更新日期:1989-08-01 00:00:00
abstract::Pyrroxamide [N-(1-hydroxymethyl-2,3-dihydroxypropyl)-2,2,5,5-tetramethyl pyrrolidine-1-oxyl-3-carboxyamide] is a newly tested nonionic monomeric nitroxyl compound with demonstrated effectiveness for MRI contrast enhancement at doses as low as 10(-3) M. Pyrroxamide and its hydroxylamine metabolic derivative were tested...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198808000-00013
更新日期:1988-08-01 00:00:00
abstract:OBJECTIVE:We aimed to assess whether migraine is associated with changes in the distribution of the venous drainage through primary and secondary pathways by using phase-contrast magnetic resonance imaging (MRI). METHODS:We examined 26 patients (37.3 ± 13.9 years) with recurring migraine headaches and 26 age- and gend...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0b013e318210ecf5
更新日期:2011-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:High signal intensity in the basal ganglia on T1-weighted MR imaging has been reported in chronic manganese (Mn) poisoning. However, the exact meaning of the high signal intensity remains unclear: does it result from Mn itself, secondary pathologic changes of the brain tissue, or both? The goal...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199906000-00001
更新日期:1999-06-01 00:00:00
abstract:OBJECTIVES:We sought to assess large bowel motility, induced by 2 prokinetic agents, senna tea and erythromycin, using functional cine magnetic resonance imaging (MRI). MATERIALS AND METHODS:Twelve volunteers underwent functional cine MRI before and after the administration of senna tea or erythromycin. The protocol c...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000183054.43131.a8
更新日期:2005-11-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to validate quantitation of R2* and DeltaR2* measurements obtained with a 3-dimensional (3-D) multiple gradient-recalled echo (mGRE) sequence for evaluating intrarenal oxygenation in humans. MATERIALS AND METHODS:Validation was accomplished (1) by comparing R2* values with pre...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000187166.43871.fb
更新日期:2006-02-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The relative stability and selectivity of magnetic resonance (MR) imaging contrast agents were compared with in vitro transmetallation and ligand competition reactions. MATERIALS AND METHODS:A gadolinium (Gd)-DTPA-BIGA, Gd-DTPA-BMA, Gd-DTPA, or Gd-HP-DO3A solution was mixed with an equimolar s...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199610000-00003
更新日期:1996-10-01 00:00:00
abstract::Surgical resection is the standard of care for colorectal metastases isolated to the liver. However, only 10-25% of the patients are eligible for resection because of extent and location of the disease in the liver or concurrent medical conditions. Image-guided radiofrequency (RF) ablation is a minimally invasive tech...
journal_title:Investigative radiology
pub_type: 杂志文章,评审
doi:10.1097/00004424-200411000-00007
更新日期:2004-11-01 00:00:00
abstract:PURPOSE:The relaxivities of 3 macrocyclic gadolinium-based contrast agents (GBCAs) were determined in human plasma and blood under standardized and clinically relevant laboratory conditions. METHODS:The T1 relaxivity, r1, was determined in human plasma at 1.5, 3, and 7 T, and in human blood at 3 T at 37°C in phantoms ...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0000000000000577
更新日期:2019-09-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To assess whether differences in cerebral atrophy and white matter lesions or in the presence of lactate and lipid signals can explain the observed differences in brain choline, creatine, and N-acetylaspartate levels between healthy elderly women and men. METHODS:In addition to standard magnet...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-200110000-00005
更新日期:2001-10-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The author analyzes findings of consistency of rotator-cuff calcifications found at ultrasound (US)-guided needle treatment compared with findings of plain radiography, US, and computed tomography (CT). METHODS:Twenty patients had rotator-cuff calcifications (mean diameter, 1.5 cm; range, 1.1-...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199605000-00010
更新日期:1996-05-01 00:00:00
abstract::Video dilution technique (VDT) is currently performed in conjunction with routine cerebral angiography to determine carotid blood flow in humans. Preliminary results indicate that the blood flows (as a percentage of cardial output) of the common, internal, and external carotid arteries are 8.5%, 5.5%, and 3.0%, respec...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198105000-00004
更新日期:1981-05-01 00:00:00
abstract:BACKGROUND:Nephrogenic systemic fibrosis (NSF) has been related to the use of gadolinium-based contrast agents (GBCAs) in patients undergoing dialysis. The Prospective Fibrose Nephrogénique Systémique study, a French prospective study supported by the French drug regulatory agency (Agence Nationale de Sécurité du Médic...
journal_title:Investigative radiology
pub_type: 临床试验,杂志文章
doi:10.1097/RLI.0000000000000000
更新日期:2014-02-01 00:00:00
abstract::A radiographic method for use in the closed-chest dog is described which allows the quantitation of segmental mechanical performance. Previous work has shown that the area of the pressure-length loop (an approximation of a stress-strain integral) is a useful measure of the mechanical work performed by a segment of myo...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-197611000-00010
更新日期:1976-11-01 00:00:00
abstract::Methods are presented for the quantification of spatial resolution in x-ray computed tomographic (CT) images. Model-dependent methods are derived and compared with model independent methods for computation of the Modulation Transfer Function (MTF). These techniques are applied to phantom images of point, line, edge, a...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198603000-00012
更新日期:1986-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:To compare electron beam tomography (EBT) with MR imaging (MRI) for detection of restenosis after coronary angioplasty (PTCA). METHODS:One hundred eighteen patients after PTCA were investigated. By EBT, 50 axial images were acquired (3-mm slice thickness, 120-160 mL radiographic contrast agent...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-200207000-00005
更新日期:2002-07-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:The influence of lipiodol injection on hepatic morphology and function was investigated in 119 rabbits with hepatic VX2 tumors. METHODS:The rabbits were divided into the following three groups, according to the materials injected via the proper hepatic artery: group 1 received doxorubicin (Adr...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-199302000-00009
更新日期:1993-02-01 00:00:00
abstract::We evaluated the incidence of ventricular fibrillation with low-osmolality contrast media by right coronary arteriography in eleven adult mongrel dogs. Following insertion of the catheter into the right coronary artery, a test solution was infused for 25 seconds (total 11 mL) or until fibrillation occurred. The test s...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198904000-00008
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVES:The aim of this work was to quantitatively evaluate the pharmacokinetic pattern of Gd-EOB-DTPA in a model of isolated and perfused mouse liver by using magnetic resonance imaging (MRI) and monochromatic quantitative computed tomography (MQCT). MATERIALS AND METHODS:For MQCT, perfusions were realized with th...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/01.rli.0000174474.43772.58
更新日期:2005-09-01 00:00:00
abstract::The developing trend for all medical images to be in digital form raises an important question: should diagnostic interpretations be made directly from a CRT or from some form of hard copy recording of the CRT? This question was studied by having two observers read a series of digital images of the thyroid including b...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/00004424-198305000-00015
更新日期:1983-05-01 00:00:00
abstract:PURPOSE:To determine the reproducibility, accuracy, and predictors of accuracy of computed tomography (CT) angiography to detect and characterize coronary atherosclerotic plaque as compared with intravascular ultrasound. METHODS:Ten ex vivo human coronary arteries were imaged in a moving phantom by dual-source CT (col...
journal_title:Investigative radiology
pub_type: 杂志文章
doi:10.1097/RLI.0b013e3181e0a541
更新日期:2010-11-01 00:00:00