Temporal changes in the oxidation state in in vitro blood.

abstract：RATIONALE AND OBJECTIVES:The authors investigated whether gadolinium-ethoxybenzyl-DTPA (Gd-EOB-DTPA) can be eliminated in the absence of the two usual excretory pathways (urinary or biliary) and whether a remaining excretory pathway is able to compensate for impaired liver or kidney function. METHODS:The study was per...

journal_title：Investigative radiology

authors： Mühler A,Heinzelmann I,Weinmann HJ

更新日期：1994-02-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to investigate the feasibility of kidney stone composition analysis using spectral detector computed tomography scanner (SDCT) with normal- and low-dose imaging protocols. METHODS:A total of 154 stones harvested from nephrolithotripsy or nephrolithotomy with a known monocrystalline...

journal_title：Investigative radiology

authors： Große Hokamp N,Salem J,Hesse A,Holz JA,Ritter M,Heidenreich A,Maintz D,Haneder S

更新日期：2018-08-01 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：:Biplane angiocardiography has emerged as a standard method for calculating left ventricular volume measurements. Validation of such measurements has separately been made for several projections of silicone casts of the left ventricle. This study was undertaken to establish and compare the regression lines for left ven...

journal_title：Investigative radiology

authors： Lipton MJ,Hayashi TT,Davis PL,Carlsson E

更新日期：1980-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The reflux of ethanol into the peritoneal cavity during percutaneous ethanol injection therapy (PEIT) of liver neoplasms may cause pain and other side effects. This article studies the optimal injection technique to minimize the reflux of ethanol. METHODS:A technique using normal postmortem pi...

journal_title：Investigative radiology

authors： Vehmas T

更新日期：1992-11-01 00:00:00

abstract：:The last two decades have witnessed tremendous strides in the evolution of acceptable and successful methods of prosthetic replacement for the arthritic joint. By and large, these techniques are predictable and durable, though not always to the complete satisfaction of the patient and surgeon. Despite the recent empha...

journal_title：Investigative radiology

authors： Volz RG,Benjamin JB

更新日期：1990-01-01 00:00:00

abstract：OBJECTIVES:The aims of this study were to present a deep learning approach for the automated classification of multiple sclerosis and its mimics and compare model performance with that of 2 expert neuroradiologists. MATERIALS AND METHODS:A total of 268 T2-weighted and T1-weighted brain magnetic resonance imagin scans ...

journal_title：Investigative radiology

authors： Rocca MA,Anzalone N,Storelli L,Del Poggio A,Cacciaguerra L,Manfredi AA,Meani A,Filippi M

更新日期：2020-10-26 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:The authors compare the magnetic resonance (MR) phase contrast flow velocity measurements in varying concentric stenoses with invasive measurements obtained with a Doppler guidewire. METHODS:Flow velocity measurements were obtained using a calibrated 0.018 inch 12 MHz Doppler guidewire and a 1...

journal_title：Investigative radiology

authors： Hoppe M,Heverhagen JT,Froelich JJ,Kunisch-Hoppe M,Klose KJ,Wagner HJ

更新日期：1998-08-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to compare F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/magnetic resonance (MR) (with and without diffusion-weighted imaging [DWI]) to F-FDG PET/computed tomography (CT), with regard to the assessment of nodal and extranodal involvement, in patients with Hodgkin lym...

journal_title：Investigative radiology

authors： Giraudo C,Raderer M,Karanikas G,Weber M,Kiesewetter B,Dolak W,Simonitsch-Klupp I,Mayerhoefer ME

更新日期：2016-03-01 00:00:00

abstract：:A nonionic contrast medium (iohexol) was evaluated for safety and efficacy in pediatric angiocardiography in this study of 15 patients, age 6 to 82 months. Patients carried a preliminary diagnosis of congenital heart disease. Subjects were injected with iohexol, 350 mg iodine/ml of solution with an average volume of 2...

journal_title：Investigative radiology

authors： Carlsson EC,Rudolph A,Stanger P,Teitel D,Weber W,Yoshida H

更新日期：1985-01-01 00:00:00

abstract：:An ultrasound phantom was constructed simulating fetal femurs in amniotic fluid. Bones of 26, 36, 50, 58, and 70 mm, representative of gestational ages ranging from 17 to 36 weeks, were scanned with mechanical sector, phased sector, and linear array systems (ATL, Diasonics, Acuson, and GE). Measurements were made with...

journal_title：Investigative radiology

authors： Gamba JL,Bowie JD,Dodson WC,Hedlund LW

更新日期：1985-05-01 00:00:00

abstract：:A new nonionic contrast medium (CM), ioxilan, was compared with iohexol and iopamidol. Following incubation of whole heparinized blood with CM, the morphology and osmotic fragility of erythrocytes were studied, the former by transmission electron microscopy. Effects on platelets and hemocoagulation were determined by ...

journal_title：Investigative radiology

authors： Parvez Z,Patel NB

更新日期：1988-09-01 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：: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

authors： Assimakopoulos PA,Boyd DP,Jaschke W,Lipton MJ

更新日期：1986-03-01 00:00:00

abstract：OBJECTIVES:Imaging of the kidney using blood oxygen level dependent MR presents a major opportunity to examine differences in tissue oxygenation within the cortex and medulla applicable to human disease. We sought to define the differences between regions within kidneys and to optimize selection of regions of interest ...

journal_title：Investigative radiology

authors： Gloviczki ML,Glockner J,Gomez SI,Romero JC,Lerman LO,McKusick M,Textor SC

更新日期：2009-09-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To evaluate the use of a new thrombus-specific ultrasound contrast agent, MRX-408, in the ultrasonic detection of thrombus in arteriovenous (AV) fistulae. METHODS:Six purpose-bred mongrels with two AV fistulae each were imaged with gray-scale ultrasound 7 weeks after graft implantation before ...

journal_title：Investigative radiology

authors： Unger E,Metzger P 3rd,Krupinski E,Baker M,Hulett R,Gabaeff D,Mills J,Ihnat D,McCreery T

更新日期：2000-01-01 00:00:00

abstract：OBJECTIVE:To investigate the feasibility of an 80-kVp protocol using a moderate concentration contrast material (MC-CM) for cerebral computed tomography angiography by comparison with a conventional 120-kVp protocol using a high concentration contrast material (HC-CM). MATERIALS AND METHODS:Attenuation values and sign...

journal_title：Investigative radiology

authors： Cho ES,Chung TS,Oh DK,Choi HS,Suh SH,Lee HK,Lee KH

更新日期：2012-02-01 00:00:00

abstract：:"Satisfaction of search" (SOS) refers to the effect in which a second lesion remains undetected after detection of another lesion on the same radiograph. The objective of this study was to clarify our understanding of SOS by relating it to total time of inspection and time intervals before, between, and after discover...

journal_title：Investigative radiology

authors： Berbaum KS,Franken EA Jr,Dorfman DD,Rooholamini SA,Coffman CE,Cornell SH,Cragg AH,Galvin JR,Honda H,Kao SC

更新日期：1991-07-01 00:00:00

abstract：:Lymphangiograms of canine cardiac and pulmonary efferent mediastinal lymphatics were made by cannulation and injection of Ethiodol. Injections were made singly and serially. The mediastinal lymphatics and lymph nodes, which constitute the pathways of drainage of the heart and lungs, were delineated from the point of c...

journal_title：Investigative radiology

authors： Leeds SE,Uhley HN,Meister RB

更新日期：1979-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Validation of new positron emission tomography (PET) tracers or magnetic (MR) imaging contrast agents is based on isolated rodent heart preparations. The use of larger animals could provide a more direct validation using the devices used for humans. METHODS:An isolated pig heart preparation ha...

journal_title：Investigative radiology

authors： Casali C,Obadia JF,Canet E,Bendjelid K,André-Fouët X,Revel D,Janier MF

更新日期：1997-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors investigated whether the ability of human malignant melanoma cells to increase in cell number or their ability to remain viable was compromised by high-field strength static magnetic fields. Normal human fibroblasts also were studied to determine if any magnetic field-related altera...

journal_title：Investigative radiology

authors： Short WO,Goodwill L,Taylor CW,Job C,Arthur ME,Cress AE

更新日期：1992-10-01 00:00:00

abstract：OBJECTIVE:Though functional intravascular parameters such as blood velocity and direction of blood flow are available via imaging modalities such as Doppler ultrasound and phase contrast magnetic resonance imaging, such quantitative information is not yet supported by computed tomography (CT). In this study, we examine...

journal_title：Investigative radiology

authors： Barfett JJ,Fierstra J,Mikulis DJ,Krings T

更新日期：2010-12-01 00:00:00

abstract：:The effect of three iodinated contrast media (CM) on human plasma butyrylcholinesterase (BuChE) activity was studied during the intravenous pyelography (i.v.P). BuChE is an enzyme that participates in the metabolism of acetylcholine and hydrolyzes food esters and drugs such as nondepolarizing muscle relaxants and loca...

journal_title：Investigative radiology

authors： Mironidou M,Ximitidou O,Christopoulos S,Kokkas B

更新日期：1998-05-01 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

authors： Lencioni R,Crocetti L,Cioni D,Della Pina C,Bartolozzi C

更新日期：2004-11-01 00:00:00

abstract：:A photographic unsharp masking technique for improving the latitude of chest radiographs without sacrificing image contrast or detail is described. An unsharp mask film, prepared from a scout film of the patient's chest, is placed between the film and the front (entrance) screen in the cassette. A second radiograph th...

journal_title：Investigative radiology

authors： Sorenson JA,Niklason LT,Nelson JA

更新日期：1981-07-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to assess the effect of age and number of previous injections of gadodiamide on the signal intensity of unenhanced T1-weighted (T1w) images of the dentate nucleus and globus pallidus in a large population. MATERIALS AND METHODS:A large, single-center retrospective population sur...

journal_title：Investigative radiology

authors： Quattrocchi CC,Errante Y,Mallio CA,Marinelli L,LoVullo G,Giannotti G,Della Sala SW,van der Molen AJ,Beomonte Zobel B

更新日期：2018-04-01 00:00:00

abstract：:A high-speed computed tomography (CT) scanner was used for measuring flow in a phantom and in the common carotid arteries of six dogs. The general ability of the scanner to assess flow using contrast media boluses was tested with the phantom. The validated simple concept was then used in the animals. The carotid blood...

journal_title：Investigative radiology

authors： Ringertz HG,Jaschke W,Sievers R,Lipton MJ

更新日期：1987-12-01 00:00:00

abstract：:Previous work has shown that Fe3+, when administered in the proper dose and time sequence, increases the tumor uptake of gallium-67 (67Ga) while decreasing its uptake by normal tissues. The purpose of this series of experiments was to examine further the postulate that the false carrier effect is mediated at the cellu...

journal_title：Investigative radiology

authors： Stern PH,Halpern SE,Hagan PL,Chen A

更新日期：1982-07-01 00:00:00

abstract：OBJECTIVE:With the introduction of ultrashort echo time (UTE) sequences solid polymeric materials might become visible on clinical whole-body magnetic resonance (MR) scanners. The aim of this study was to characterize solid polymeric materials typically used for instruments in magnetic resonance guided interventions an...

journal_title：Investigative radiology

authors： Springer F,Martirosian P,Schwenzer NF,Szimtenings M,Kreisler P,Claussen CD,Schick F

更新日期：2008-11-01 00:00:00