Percutaneous radiofrequency ablation of hepatic colorectal metastases: technique, indications, results, and new promises.

abstract：OBJECTIVES:The purpose of this study was to evaluate the extent to which various commercially available gadolinium-containing contrast-enhancing (CE) agents can interfere with the measurement of calcium levels by currently used laboratory methods, suggesting (spurious) hypocalcemia or hypercalcemia with a potential ris...

journal_title：Investigative radiology

authors： Löwe A,Balzer T,Hirt U

更新日期：2005-08-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to investigate if pancreatic steatosis measured by proton density fat fraction (PDFF) is associated with exocrine pancreatic function defined by fecal elastase concentrations. MATERIALS AND METHODS:A total of 1458 volunteers (777 women; age range, 21-88 years) underwent magnetic re...

journal_title：Investigative radiology

authors： Kromrey ML,Friedrich N,Hoffmann RT,Bülow R,Völzke H,Weiss FU,Lerch MM,Motosugi U,Kühn JP

更新日期：2019-07-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The purpose of this study was to determine whether cerebral fat embolism demonstrated reversible or irreversible findings in magnetic resonance (MR) imaging over time and to compare the features in MR images with histologic findings in a cat model. MATERIALS AND METHODS:MR images were obtained...

journal_title：Investigative radiology

authors： Kim HJ,Lee CH,Lee SH,Moon TY

更新日期：2003-10-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To evaluate the feasibility of mechanical thrombectomy in occluded hemodialysis access shunts by using a newly developed 5F pigtail rotation catheter. METHODS:Thrombosed hemodialysis access shunts were simulated by clotted bovine blood in silicone tubing (diameter 6 mm). After retrograde and a...

journal_title：Investigative radiology

authors： Wildberger J,Schmitz-Rode T,Wein BB,Günther RW

更新日期：1999-07-01 00:00:00

abstract：OBJECTIVES:We compared the image quality and diagnostic performance of 2 fat-suppression methods for black-blood T2-weighted fast spin-echo (FSE), which are as follows: (a) short T1 inversion recovery (STIR; FSE-STIR) and (b) spectral adiabatic inversion recovery (SPAIR; FSE-SPAIR), for detection of acute myocardial in...

journal_title：Investigative radiology

authors： Srichai MB,Lim RP,Lath N,Babb J,Axel L,Kim D

更新日期：2013-01-01 00:00:00

abstract：:The density of trabecular bone in the os calcis has been measured in 321 subjects using a gamma ray scattering technique. In normal subjects it was shown that density could be predicted from body weight and age with a standard error of 5.6%. It was also shown that the dependence of density upon weight and age was the ...

journal_title：Investigative radiology

authors： Roberts JG,DiTomasso E,Webber CE

更新日期：1982-01-01 00:00:00

abstract：:Eye position recordings made while radiologists searched chest images for lung nodules showed that regions falsely reported positive or suspicious received prolonged visual attention. Correlation of regional fixation dwell time with independent ratings of image features indicated that more than 90% of false-positive d...

journal_title：Investigative radiology

authors： Kundel HL,Nodine CF,Krupinski EA

更新日期：1989-06-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors used magnetic resonance imaging (MRI) techniques to examine the effect of meningeal trauma produced by cisterna magna puncture on the integrity of the blood-cerebrospinal fluid barrier (BCB) in a rat model. METHODS:Intravenous gadolinium-DTPA (Gd-DTPA), a relaxation rate modifier w...

journal_title：Investigative radiology

authors： Walker JD,Martin MA,Potts DG,Lemaire C,Templeton DM

更新日期：1992-04-01 00:00:00

abstract：OBJECTIVES:The objectives of this study were to test the feasibility of an investigational dual-channel next-generation endorectal coil (NG-ERC) in vivo, to quantitatively assess signal-to-noise ratio (SNR), and to get an impression of image quality compared with the current clinically available single-loop endorectal ...

journal_title：Investigative radiology

authors： Vos EK,Sambandamurthy S,Kamel M,McKenney R,van Uden MJ,Hoeks CM,Yakar D,Scheenen TW,Fütterer JJ

更新日期：2014-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To compare gadobenate dimeglumine (Gd-BOPTA) with gadopentetate dimeglumine (Gd-DTPA) for magnetic resonance imaging of the liver. METHODS:The contrast agent Gd-BOPTA or Gd-DTPA was administered at a dose of 0.1 mmol/kg to 257 patients suspected of having malignant liver tumors. Dynamic phase ...

journal_title：Investigative radiology

authors： Kuwatsuru R,Kadoya M,Ohtomo K,Tanimoto A,Hirohashi S,Murakami T,Tanaka Y,Yoshikawa K,Katayama H

更新日期：2001-11-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to develop and verify a method to obtain good temporal resolution T2-weighted 4-dimensional (4D-T2w) magnetic resonance imaging (MRI) by using motion information from T1-weighted 4D (4D-T1w) MRI, to support treatment planning in MR-guided radiotherapy. MATERIALS AND METHODS:Ten pat...

journal_title：Investigative radiology

authors： Freedman JN,Collins DJ,Bainbridge H,Rank CM,Nill S,Kachelrieß M,Oelfke U,Leach MO,Wetscherek A

更新日期：2017-10-01 00:00:00

abstract：:Simultaneous inflation of two balloons may be necessary for balloon dilation valvuloplasty in patients with a large annulus. We examined the cardiovascular effects of dilating the pulmonary annulus with two balloons in 18 normal dogs using pulsed Doppler ultrasound and gross and microscopic examination. When the ratio...

journal_title：Investigative radiology

authors： Butto F,Burke B,Berry JM,Amplatz K,Bass JL

更新日期：1988-08-01 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：RATIONALE AND OBJECTIVES:The effect of varying exposure parameters on the detectability of a fracture with digital and conventional radiography were examined. METHODS:A macerated fractured skull was imaged by film-screen radiography (FSR) and digital storage phosphor radiography (DR) with various exposure values. Five...

journal_title：Investigative radiology

authors： Langen HJ,Klein HM,Wein B,Schiwy-Bochat KH,Stargardt A,Günther RW

更新日期：1993-03-01 00:00:00

abstract：:Virtually all receiver operating characteristic (ROC) studies of medical imaging methods have involved data collected on a discrete confidence-rating scale, though in principle ROC studies can be conducted with either discrete or continuous scales. Continuous scales provide potential advantages in medical applications...

journal_title：Investigative radiology

authors： Rockette HE,Gur D,Metz CE

更新日期：1992-02-01 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：RATIONALE AND OBJECTIVES:Tools for monitoring modern target-specific antiangiogenic and antivascular therapies are highly desirable because treatment strategies are time consuming, expensive, and yet sometimes ineffective. Therefore, the aim of this experimental study was to evaluate the predictive value of steady-stat...

journal_title：Investigative radiology

authors： Persigehl T,Matuszewski L,Kessler T,Wall A,Meier N,Ebert W,Berdel WE,Heindel W,Mesters R,Bremer C

更新日期：2007-12-01 00:00:00

abstract：:The effect of intravenous urography (IVU) on the excretion rate and precipitation of Tamm-Horsfall glycoprotein (THG) has been evaluated in 19 patients. Urine samples were collected immediately before the administration of contrast medium (U1) and then during the period of the excretion urogram (U2). The urinary THG: ...

journal_title：Investigative radiology

authors： Dawnay AB,Thornley C,Nockler I,Webb JA,Cattell WR

更新日期：1985-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Echogenic antibody-conjugated anionic liposomes have been developed that allow directed tissue targeting and acoustic enhancement. These are not efficient for gene delivery. A cationic formulation that allows directed gene delivery while retaining acoustic properties may provide more efficient ...

journal_title：Investigative radiology

authors： Tiukinhoy SD,Mahowald ME,Shively VP,Nagaraj A,Kane BJ,Klegerman ME,MacDonald RC,McPherson DD,Matsumura JS

更新日期：2000-12-01 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

authors： Amet S,Launay-Vacher V,Clément O,Frances C,Tricotel A,Stengel B,Gauvrit JY,Grenier N,Reinhardt G,Janus N,Choukroun G,Laville M,Deray G

更新日期：2014-02-01 00:00:00

abstract：:The authors correlated sonographic findings with histologic findings in a rabbit model of osteomyelitis. Staphylococcus aureus osteomyelitis was induced in the femora of 11 New Zealand white rabbits. The opposite leg was used as a control. Sonographic findings showed fluid adjacent to the bone in 11 cases. The fluid w...

journal_title：Investigative radiology

authors： Abiri MM,DeAngelis GA,Kirpekar M,Abou AN,Ablow RC

更新日期：1992-02-01 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

authors： Kim SH,Chang KH,Chi JG,Cheong HK,Kim JY,Kim YM,Han MH

更新日期：1999-06-01 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

authors： Floren MG,Günther RW,Schmitz-Rode T

更新日期：2004-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Target-specific magnetic resonance (MR) contrast agents are being developed to improve the accuracy of MR imaging. The purpose of this study was to determine the mechanism of cell uptake, and modes of intracellular trafficking of a prototypical iron oxide label (RMA) used in the synthesis of so...

journal_title：Investigative radiology

authors： Schulze E,Ferrucci JT Jr,Poss K,Lapointe L,Bogdanova A,Weissleder R

更新日期：1995-10-01 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：RATIONALE AND OBJECTIVES:Magnetic resonance imaging (MRI) techniques seem to be very promising for 3D dosimetry studies, but long imaging acquisition time limits their use. A new fast T1 mapping protocol, easy to implement on a conventional MR imager, has been used to determine dose distributions on Fricke gels. METHO...

journal_title：Investigative radiology

authors： Calmet C,Vincensini D,Bonnet J,Bertino C,Catala A,Martinez M,Joffre F

更新日期：1999-03-01 00:00:00

abstract：PURPOSE:Detection of pulmonary metastases is still a challenging task for magnetic resonance imaging (MRI). It was the aim of this study to evaluate the potential of a free-breathing move-during-scan turbo inversion recovery magnitude sequence for the detection of pulmonary nodules. MATERIALS AND METHODS:The sensitivi...

journal_title：Investigative radiology

authors： Baumann T,Ludwig U,Pache G,Gall C,Saueressig U,Fisch D,Stankovic Z,Bartholomae JP,Honal M,Bley TA,Langer M,Schaefer O

更新日期：2008-06-01 00:00:00

abstract：OBJECTIVE:: This feasibility study was performed to assess whether dynamic contrast-enhanced ultrasound (CEUS) and transient arterial occlusion are able to detect alterations in the microvascular perfusion and arterial perfusion reserve in patients suffering from peripheral arterial disease (PAD) in comparison with hea...

journal_title：Investigative radiology

authors： Amarteifio E,Weber MA,Wormsbecher S,Demirel S,Krakowski-Roosen H,Jöres A,Braun S,Delorme S,Böckler D,Kauczor HU,Krix M

更新日期：2011-08-01 00:00:00

abstract：OBJECTIVE:BR55, a vascular endothelial growth factor receptor 2 (VEGFR2)-specific ultrasound molecular contrast agent (MCA), has shown promising results in multiple preclinical models regarding cancer imaging. In this first-in-human, phase 0, exploratory study, we investigated the feasibility and safety of the MCA for ...

journal_title：Investigative radiology

authors： Smeenge M,Tranquart F,Mannaerts CK,de Reijke TM,van de Vijver MJ,Laguna MP,Pochon S,de la Rosette JJMCH,Wijkstra H

更新日期：2017-07-01 00:00:00

abstract：:Computed tomography followed by sectional radiography and photography as performed on eight cadaveric specimens in order to define the anatomy and normal motion of both the proximal and the distal radioulnar articulations. Osseous landmarks were defined that allowed measurement of rotation at the glenohumeral, proxima...

journal_title：Investigative radiology

authors： Cone RO,Szabo R,Resnick D,Gelberman R,Taleisnik J,Gilula LA

更新日期：1983-11-01 00:00:00