Auditory cortex activation in deaf subjects during cochlear electrical stimulation. Evaluation by functional magnetic resonance imaging.

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

authors： Koerte IK,Schankin CJ,Immler S,Lee S,Laubender RP,Grosse C,Eftimov L,Milde-Busch A,Reiser M,Straube A,Heinen F,Alperin N,Ertl-Wagner B

更新日期：2011-07-01 00:00:00

abstract：:The hardcopy recording technologies of video cameras, slow-scan (digital spot) recorders, and laser film printers are presented and compared. Slow-scan (digital spot) recorders offer a few advantages when compared with multiformat video cameras. But only laser film printers provide the high-quality hardcopy recordings...

journal_title：Investigative radiology

authors： Siegel EL,Bishop MD,Wetzel LH,Anderson WF,McMillan JH

更新日期：1991-02-01 00:00:00

abstract：OBJECTIVES:To determine the impact of slice thickness on semiautomatic lymph node analysis. MATERIALS AND METHODS:Thoracic multislice computed tomography (MSCT) of 46 patients with NSCLC were reconstructed at 1.0-, 3.0-, and 5.0-mm slice thickness. Two radiologists independently determined long and short axis diameter...

journal_title：Investigative radiology

authors： Buerke B,Puesken M,Beyer F,Gerss J,Weckesser M,Seifarth H,Heindel W,Wessling J

更新日期：2010-02-01 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

authors： Geschwind JF,Saeed M,Wendland MF,Higgins CB

更新日期：1998-07-01 00:00:00

abstract：:Magnetic resonance (MR) methods have been used to study the metabolic and vascular response of model tumors to tumor necrosis factor (TNF). Magnetic resonance measurements demonstrated acute reductions in tumor blood flow, measured from tumor uptake of D2O, and in tumor adenosine triphosphate (ATP), measured by 31P ma...

journal_title：Investigative radiology

authors： Karczmar GS,Meyerhoff DJ,Speder A,Valone F,Wilkinson M,Shine N,Boska MD,Weiner MW

更新日期：1989-12-01 00:00:00

abstract：:This article reviews the computer system hardware and software, applications programs, and computer network services that are available on microcomputers for use by the radiologist. The American College of Radiology Institute computer network is described, which is specifically designed to help the practicing radiolog...

journal_title：Investigative radiology

authors： Newell JD,Hunter TB

更新日期：1986-02-01 00:00:00

abstract：OBJECTIVES:Magnetic resonance-guided high-intensity focused ultrasound (MR-HIFU) is a method to heat lesions noninvasively to a stable, elevated temperature and a well-suited method to induce local hyperthermia (41°C-43°C) in deep-seated tissues. Magnetic Resonance (MR) imaging provides therapy planning on anatomical i...

journal_title：Investigative radiology

authors： Kneepkens E,Heijman E,Keupp J,Weiss S,Nicolay K,Grüll H

更新日期：2017-10-01 00:00:00

abstract：OBJECTIVE:As an imaging modality for follow-up during continuous or repeated hepatic arterial infusion chemotherapy using a hepatic intra-arterial indwelling catheter, the usefulness of CT while infusing contrast through the indwelling catheter (reservoir port) was examined. METHODS:Using reservoir ports implanted in ...

journal_title：Investigative radiology

authors： Morimoto M,Satake M,Sekiguchi R,Haruno M,Moriyama N

更新日期：1999-12-01 00:00:00

abstract：OBJECTIVES:The objective of this study was to evaluate the frequency and characteristics of artifacts in segmentation-based attenuation correction maps (μ-maps) of positron emission tomography/magnetic resonance (PET/MR) and their impact on PET interpretation and the standardized uptake value (SUV) quantification in no...

journal_title：Investigative radiology

authors： Brendle C,Schmidt H,Oergel A,Bezrukov I,Mueller M,Schraml C,Pfannenberg C,la Fougère C,Nikolaou K,Schwenzer N

更新日期：2015-05-01 00:00:00

abstract：:Skeletal abnormalities have been reported on numerous occasions in patients who have received high doses of vitamin A and its derivatives. Recently, a new derivative, isotretinoin (Accutane, Hoffman-LaRoche, Inc.), has become available for the treatment of cystic acne. Ninety-six patients treated for a minimum of four...

journal_title：Investigative radiology

authors： Kilcoyne RF,Cope R,Cunningham W,Nardella FA,Denman S,Franz TJ,Hanifin J

更新日期：1986-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The objective of the present study was to compare the data regarding the ability of real-time myocardial contrast echocardiography (MCE) to assess altered myocardial blood flow produced by graded coronary stenoses between open- and closed-chest canine models. MATERIALS AND METHODS:Three grades...

journal_title：Investigative radiology

authors： Masugata H,Peters B,Lafitte S,Yao B,Strachan M,Ling Kwan O,Ohmori K,Mizushige K,Kohno M

更新日期：2003-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Ureteric jet index (UJI), a newly developed technique derived from color Doppler ultrasonography, may hold promise in evaluating renal function because of its ability to evaluate individual renal function and the use of nonionizing radiation. To assess the usefulness of UJI, the authors in this...

journal_title：Investigative radiology

authors： Chiu NT,Wu CC,Yao WJ,Tu DG,Lee BF,Tong YC,Pan CC

更新日期：1999-08-01 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：: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：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

authors： Buhmann S,Kirchhoff C,Wielage C,Mussack T,Reiser MF,Lienemann A

更新日期：2005-11-01 00:00:00

abstract：:Due to the nature of three-dimensional Fourier transform (3-DFT) data acquisition in magnetic resonance imaging (MRI), the spatial relation between a resolved volume element (a voxel) and the object can be manipulated easily. Those manipulations have practical consequences in terms of registering slice positions with ...

journal_title：Investigative radiology

authors： Kramer D,Li A,Simovsky I,Hawryszko C,Hale J,Kaufman L

更新日期：1990-12-01 00:00:00

abstract：RATIONALE AND OBJECTIVE:The authors performed a retrospective study in ultrasound to investigate new aspects in the sonomorphology of lymph node metastases of the neck. In this study, it could be demonstrated the first time that the histologic characteristics of the metastases determine the sonographic appearance. In a...

journal_title：Investigative radiology

authors： Mäurer J,Willam C,Steinkamp HJ,Knollmann FD,Felix R

更新日期：1996-09-01 00:00:00

abstract：OBJECTIVE:: The final event leading to myocardial infarction is adhesion and activation of platelets after rupture of an atherosclerotic plaque, ending in thrombotic occlusion of the coronary artery. Imaging of imminent vessel occlusion may improve patient care. The feasibility of molecular magnetic resonance imaging (...

journal_title：Investigative radiology

authors： Duerschmied D,Meißner M,Peter K,Neudorfer I,Roming F,Zirlik A,Bode C,von Elverfeldt D,von Zur Muhlen C

更新日期：2011-10-01 00:00:00

abstract：:Analysis of 46 sacroiliac joints removed in toto at random during routine autopsies was undertaken to define the pathologic and radiographic alterations of this joint in middle-aged and elderly patients. Each joint was sectioned, photographed and radiographed and large microscopic slides were prepared. Sacroiliac oste...

journal_title：Investigative radiology

authors： Resnick D,Niwayama G,Goergen TG

更新日期：1975-11-01 00:00:00

abstract：:The cerebrovascular toxicity of three water-soluble contrast agents with a low hypertonicity (metrizamide, ioxaglate, iopamidol) was tested. Blood-brain barrier damage after carotid injection was assessed using 32P autoradiography and fluorescent microscopy after Evans blue staining. The damage to carotid endothelium ...

journal_title：Investigative radiology

authors： Gonsette RE,Liesenborgh L

更新日期：1980-11-01 00:00:00

abstract：:The potential of magnetic resonance imaging (MRI) quantification of calcium for the evaluation of pulmonary nodules was investigated in simulated nodules. Calcium salts do not contain mobile protons and thus have no signal on MR proton images. To determine whether the absence of signal from partially calcified nodules...

journal_title：Investigative radiology

authors： Gamsu G,de Geer G,Cann C,Müller N,Brito A

更新日期：1987-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors studied the effect of contrast dose, use of magnetization transfer (MT), and temporal delay on the visualization of contrast enhancement with gadoteridol (Gd HP-DO3A) in a canine brain abscess model. METHODS:Alpha streptococcus brain abscesses were studied in five dogs at 1.5 tesla...

journal_title：Investigative radiology

authors： Runge VM,Wells JW,Kirsch JE

更新日期：1995-03-01 00:00:00

abstract：OBJECTIVES:The authors assessed the relative efficacy of conventional and digital storage-phosphor radiographs for the detection of skull fractures. METHODS:Fifty conventional film-screen radiographs (FSR) and 50 digital storage-phosphor radiographs (DR) with 66 fractures were compared. Five radiologists evaluated ima...

journal_title：Investigative radiology

authors： Langen HJ,Klein HM,Wein B,Stargardt A,Günther RW

更新日期：1993-08-01 00:00:00

abstract：:Chest radiographs are commonly obtained to assess children for bronchiolitis, both to corroborate the diagnosis and to exclude other diagnostic possibilities. Their utility in this setting has not previously been examined. Using a blinded, randomized study design, we examined the interobserver and intraobserver variat...

journal_title：Investigative radiology

authors： Coblentz CL,Babcook CJ,Alton D,Riley BJ,Norman G

更新日期：1991-02-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The vasoconstriction of the renal arteries is frequently considered as a crucial factor for radiocontrast-induced nephropathy. A direct effect of iodinated radiographic contrast medium (RCM) on vascular smooth muscle is supposed to be one component of the vascular response. We studied the effec...

journal_title：Investigative radiology

authors： Uder M,Humke U,Pahl M,Jansen A,Utz J,Kramann B

更新日期：2002-08-01 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

authors： Lantz BM,Dublin AB,McGahan JP,Link DP

更新日期：1981-05-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to achieve initial experience with non-contrast-enhanced (ne) magnetic resonance angiography (MRA) of the lower leg arteries in patients with peripheral arterial occlusive disease (PAOD) at 7 T. MATERIALS AND METHODS:Seven patients with PAOD were examined on a 7-T whole-body magnet...

journal_title：Investigative radiology

authors： Fischer A,Maderwald S,Johst S,Orzada S,Ladd ME,Umutlu L,Lauenstein TC,Kniemeyer HW,Nassenstein K

更新日期：2014-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To investigate image mottle in conventional CT images of the abdomen as a function of radiographic technique factors and patient size. METHODS:Water-filled phantoms simulating the abdomens of adult (32 cm in diameter) and pediatric (16 cm in diameter) patients were used to investigate image mo...

journal_title：Investigative radiology

authors： Ende JF,Huda W,Ros PR,Litwiller AL

更新日期：1999-04-01 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

authors： Szomolanyi P,Rohrer M,Frenzel T,Noebauer-Huhmann IM,Jost G,Endrikat J,Trattnig S,Pietsch H

更新日期：2019-09-01 00:00:00

abstract：:The association of GE Medical Systems and the AUR represents a unique collaboration between academic radiology and industry that bears important potential for elevating the quality of clinical research in radiology and developing a cadre of high-quality radiologist researchers for the future. The establishment of the ...

journal_title：Investigative radiology

authors： Hillman BJ,Fryback DG,Holden RW,McNeil BJ,Molitor RM,Moss AA,Peck PV,Putman CE,Thompson WM

更新日期：1993-05-01 00:00:00