Evaluation and validation of ureteric jet index by glomerular filtration rate.

abstract：RATIONALE AND OBJECTIVES:The purpose of this study evaluating a cesium iodide-amorphous silicon-based flat-panel detector was to optimize the x-ray spectrum for chest radiography combining excellent contrast-detail visibility with reduced patient exposure. MATERIALS AND METHODS:A Lucite plate with 36 drilled holes of ...

journal_title：Investigative radiology

authors： Hamer OW,Völk M,Zorger N,Borisch I,Büttner R,Feuerbach S,Strotzer M

更新日期：2004-10-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To characterize the long-term effects of therapeutic doses of ionizing radiation on the uptake and distribution of percutaneously delivered particulate contrast media in normal lymph nodes. METHODS:Two milliliters of an iodinated nanoparticle suspension (76 mg I/mL) was injected subcutaneously...

journal_title：Investigative radiology

authors： Wisner ER,Théon A,Griffey SM,McIntire GL

更新日期：2000-03-01 00:00:00

abstract：:Proposed causes of renal papillary necrosis (RPN) include tubular toxicity due to hyperconcentration of toxins in the renal medulla and vasoconstriction of medullary vessels with ischemic necrosis. The authors studied these mechanisms in bromoethylamine hydrobromide-induced RPN in rats by microvascular and tubular mic...

journal_title：Investigative radiology

authors： Cuttino JT Jr,Goss FU,Clark RL,Marr MC

更新日期：1981-03-01 00:00:00

abstract：INTRODUCTION:Attenuation correction for magnetic resonance (MR) coils is a new challenge that came about with the development of combined MR and positron emission tomography (PET) imaging. This task is difficult because such coils are not directly visible on either PET or MR acquisitions with current combined scanners ...

journal_title：Investigative radiology

authors： Eldib M,Bini J,Calcagno C,Robson PM,Mani V,Fayad ZA

更新日期：2014-02-01 00:00:00

abstract：PURPOSE:The purpose of this study was to evaluate the magnetic resonance prostate imaging reporting and data system (PI-RADS) for the detection of prostate cancer by the results of magnetic resonance imaging (MRI)-guided biopsy of the prostate as a reference standard. PATIENTS AND METHODS:In 55 patients who had underg...

journal_title：Investigative radiology

authors： Baur AD,Maxeiner A,Franiel T,Kilic E,Huppertz A,Schwenke C,Hamm B,Durmus T

更新日期：2014-06-01 00:00:00

abstract：OBJECTIVE:To compare image quality and geometric distortion between readout-segmented diffusion-weighted imaging (rs-DWI) and selective-excitation accelerated reduced-field of view (FOV) DWI (sTX-DWI) of the prostate. MATERIALS AND METHODS:Sixty-five patients underwent 3-T MRI of the prostate including rs-DWI and sTX-...

journal_title：Investigative radiology

authors： Barth BK,Cornelius A,Nanz D,Eberli D,Donati OF

更新日期：2015-11-01 00:00:00

abstract：OBJECTIVES:The aims of this study were, first, to evaluate a deep learning-based, automatic glioblastoma (GB) tumor segmentation algorithm on clinical routine data from multiple centers and compare the results to a ground truth, manual expert segmentation, and second, to evaluate the quality of the segmentation results...

journal_title：Investigative radiology

authors： Perkuhn M,Stavrinou P,Thiele F,Shakirin G,Mohan M,Garmpis D,Kabbasch C,Borggrefe J

更新日期：2018-11-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to evaluate the feasibility of a computed tomography (CT) protocol enabling the visualization of the prostatic artery (PA) before prostatic artery embolization (PAE) in benign prostatic hyperplasia, which provides quantitative perfusion information of the prostate gland. MATERIALS ...

journal_title：Investigative radiology

authors： Kobe A,Puippe G,Klotz E,Alkadhi H,Pfammatter T

更新日期：2019-10-01 00:00:00

abstract：UNLABELLED:Szapiro D, Ghaye B, Willems V, et al. Evaluation of CT time-density curves of lower-limb veins. Invest Radiol 2001;36:164-169. RATIONALE AND OBJECTIVES:To evaluate time-density curves of the lower-limb veins for optimization of CT venography. METHODS:Fifty patients referred for chest CT were randomized int...

journal_title：Investigative radiology

authors： Szapiro D,Ghaye B,Willems V,Zhang L,Albert A,Dondelinger RF

更新日期：2001-03-01 00:00:00

abstract：:In vitro incompatibilities between nine water-soluble contrast media and 21 intravascular pharmacologic agents were investigated using naked-eye observation and a centrifuge. Most of the previously reported incompatibilities were verified, and a few new incompatibilities were discovered: phentolamine mesylate with dia...

journal_title：Investigative radiology

authors： Kim SH,Lee HK,Han MC

更新日期：1992-01-01 00:00:00

abstract：OBJECTIVES:Magnetic resonance imaging guidance has been sporadically reported for renal tumor cryoablation (CA); therefore, clinical experience with this modality is still limited.The aim of this study is to retrospectively analyze our 10-year experience with renal tumor CA performed on a 1.5 T magnetic resonance imagi...

journal_title：Investigative radiology

authors： Cazzato RL,De Marini P,Leonard-Lorant I,Leclerc L,Auloge P,Tricard T,Dalili D,Garnon J,Lang H,Gangi A

更新日期：2020-09-04 00:00:00

abstract：:Gallbladder sclerotherapy after permanent cystic duct occlusion, to prevent gallstone recurrence in nonsurgical gallstone therapy, is at least a two-stage procedure. A balloon catheter was developed to perform gallbladder sclerotherapy with only temporary occlusion of the cystic duct, and the efficacy and safety of th...

journal_title：Investigative radiology

authors： Brakel K,Laméris JS,Vergunst H,Ten Kate FJ,Nijs HG,Terpstra OT

更新日期：1991-09-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors investigate whether a modified gadolinium (Gd)-DTPA formulation can be aerosolized and used as a contrast agent for magnetic resonance (MR) ventilation imaging of the lungs. METHODS:Gadolinium-DTPA (gadopentetate dimeglumine, Schering AG, Berlin, Germany, 100 mmol Gd/L) was modifie...

journal_title：Investigative radiology

authors： Misselwitz B,Mühler A,Heinzelmann I,Böck JC,Weinmann HJ

更新日期：1997-12-01 00:00:00

abstract：OBJECTIVE:This study aims for targeted biopsy validation of magnetic resonance fingerprinting (MRF) and diffusion mapping for characterizing peripheral zone (PZ) prostate cancer and noncancers. MATERIALS AND METHODS:One hundred four PZ lesions in 85 patients who underwent magnetic resonance imaging were retrospectivel...

journal_title：Investigative radiology

authors： Panda A,OʼConnor G,Lo WC,Jiang Y,Margevicius S,Schluchter M,Ponsky LE,Gulani V

更新日期：2019-08-01 00:00:00

abstract：:Prior to the formation of an intravenous digital subtraction angiography (IV-DSA) image, contrast medium passes through the lesser circulation and is diluted by the blood volume of the heart and lungs. If the contrast medium alone influences central blood volume or cardiac output, the shape of the resultant time-conce...

journal_title：Investigative radiology

authors： Burbank FH,Thompson WM

更新日期：1986-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To establish a pig model suitable for imitating pulmonary emboli to facilitate research in the diagnosis of pulmonary embolism. METHODS:Thirteen animals were anesthetized, mechanically ventilated, and subjected to pulmonary artery catheterization initiated from the right external jugular vein....

journal_title：Investigative radiology

authors： Amundsen T,Kvaerness J,Aadahl P,Waage A,Bjermer L,Odegård A,Haraldseth O

更新日期：2000-05-01 00:00:00

abstract：:Trypan blue and 197HgCl2 were used as markers of the increased leakage through the blood-brain barrier which developed after selective injection of different contrast media formulations into the internal carotid arteries of rabbits. Interest was focused on a new, experimental, nonionic medium (C-29) and possible effec...

journal_title：Investigative radiology

authors： Golman K

更新日期：1979-07-01 00:00:00

abstract：:Frequency spectral analysis of cardiac wall motion as calculated from the recorded video kymogram are demonstrated. Characteristic harmonics following the fundamental frequency of the cardiac rate have been demonstrated to have an alternating sequential energy distribution as measured from the free margin of the left ...

journal_title：Investigative radiology

authors： Silverman NR,Rosen L,Helland DR

更新日期：1975-03-01 00:00:00

abstract：:A method of teaching radiology residents by identification of general and specific objectives to be accomplished during each time segment of the four-year training program has been developed. The objectives are incorporated into an educational contract that is signed by the resident and rotation director at the beginn...

journal_title：Investigative radiology

authors： Howland WJ,Marler D,Bosshart D

更新日期：1986-12-01 00:00:00

abstract：:We evaluated the density distribution (anterior-posterior) of the right lung in 19 acutely anesthetized supine dogs using computed transmission tomography (CTT). Eleven dogs served as controls, and eight received 0.12 cc/kg of intravenously administered oleic acid. The latter were sequentially imaged over 1 hour. Nine...

journal_title：Investigative radiology

authors： Slutsky RA,Long S,Peck WW,Higgins CB,Mattrey R

更新日期：1984-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To study cellular mechanisms that cause contrast media nephropathy, an in vitro system for proximal and distal tubular cells has been established to evaluate the influence of x-ray contrast media on tubular function. METHODS:Confluent cell cultures of the two renal cell lines, proximal tubule ...

journal_title：Investigative radiology

authors： Andersen KJ,Christensen EI,Vik H

更新日期：1994-11-01 00:00:00

abstract：PURPOSE:We sought to develop a robotic system for computed tomography (CT)-guided biopsy to validate the feasibility, accuracy, and efficacy of the system using phantom tests. MATERIALS AND METHODS:Ten peas (mean diameter 9.9+/-0.4 mm) embedded within a gel phantom were selected for biopsy. Once the best access was de...

journal_title：Investigative radiology

authors： Kettenbach J,Kronreif G,Figl M,Fürst M,Birkfellner W,Hanel R,Ptacek W,Bergmann H

更新日期：2005-04-01 00:00:00

abstract：:The feasibility of control of traumatic hepatic hemorrhage by angiographic transcatheter embolization was investigated. Bleeding sites were created in the livers of each of twelve dogs, and the hepatic artery was occluded with Gelfoam. Successful control of bleeding was demonstrated by postembolization angiography in ...

journal_title：Investigative radiology

authors： Tyler T,Rosenbaum HD

更新日期：1978-01-01 00:00:00

abstract：PURPOSE:The aim of this study was to compare qualitative and quantitative image quality and geometric distortion of 4 magnetic resonance diffusion-weighted imaging (DWI) sequences of the prostate using comparable imaging parameters and similar acquisition times. METHODS AND MATERIALS:Axial T2-weighted turbo spin echo ...

journal_title：Investigative radiology

authors： Stocker D,Manoliu A,Becker AS,Barth BK,Nanz D,Klarhöfer M,Donati OF

更新日期：2018-04-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The purpose of the study was to evaluate the effect of articular fluid distention on patellar position at different degrees of knee angulation. METHODS:Patellar position in 10 cadaveric knee specimens was determined with 30, 100, and 200 mm Hg joint distention at 45, 20, and 5 degrees of knee ...

journal_title：Investigative radiology

authors： Brossmann J,Koch S,Schwarzenberg H,Link J,Muhle C,Bull CC,Heller M

更新日期：1996-02-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to assess and compare the overall performance, reliability, variability, as well as the accuracy of diffusion tensor imaging (DTI) and fiber tracking metrics, for the muscles of the calf at 3 T and 7 T. MATERIALS AND METHODS:Ten volunteers (5 males; mean age, 29.1 ± 4.7 years), with...

journal_title：Investigative radiology

authors： Giraudo C,Motyka S,Weber M,Feiweier T,Trattnig S,Bogner W

更新日期：2019-01-01 00:00:00

abstract：OBJECTIVES:The aims of this study were to implement and systematically evaluate the performance of a new parameter-free segmented algorithm for analysis of diffusion imaging data using a combined intravoxel incoherent motion and diffusion kurtosis imaging (IVIM-DKI) model of spin diffusion in comparison with the simple...

journal_title：Investigative radiology

authors： Wurnig MC,Kenkel D,Filli L,Boss A

更新日期：2016-03-01 00:00:00

abstract：OBJECTIVES:This clinical study investigated the pharmacokinetics and safety of gadobutrol, a magnetic resonance (MR) imaging extracellular contrast agent, in pediatric patients aged 2 to 17 years. MATERIALS AND METHODS:In this open-label, multicenter study, patients scheduled for routine contrast-enhanced MR imaging o...

journal_title：Investigative radiology

authors： Hahn G,Sorge I,Gruhn B,Glutig K,Hirsch W,Bhargava R,Furtner J,Born M,Schröder C,Ahlström H,Kaiser S,Moritz JD,Kunze CW,Shroff M,Stokland E,Trnkova ZJ,Schultze-Mosgau M,Reif S,Bacher-Stier C,Mentzel HJ

更新日期：2009-12-01 00:00:00

abstract：:Recent experimental data underlies the role of hypoxic tubular injury in the pathophysiology of radiocontrast nephropathy. Although systemic transient hypoxemia, increased blood viscosity, and a leftward shift of the oxygen-hemoglobin dissociation curve may all contribute to intrarenal hypoxia, imbalance between oxyge...

journal_title：Investigative radiology

authors： Heyman SN,Reichman J,Brezis M

更新日期：1999-11-01 00:00:00

abstract：:Percutaneous injection of absolute ethanol into adenocarcinomas implanted in the hind leg of rats was evaluated as a potential cancer treatment. Intramuscular alcohol injections up to 10 mL/kg produced a local dose-dependent coagulation necrosis followed by granulation tissue formation and subsequent fibrosis but no a...

journal_title：Investigative radiology

authors： Burgener FA,Steinmetz SD

更新日期：1987-06-01 00:00:00