Air-filled ultrasound contrast agents do not damage the cerebral microvasculature or brain tissue in rats.

abstract：RATIONALE AND OBJECTIVES:The authors studied the long-term distribution of gadolinium (Gd) in mice and rats after the administration of four commercially available magnetic resonance imaging contrast media. The goals were to determine any possible product dissociation in vivo and to evaluate the effects that product ex...

journal_title：Investigative radiology

authors： Tweedle MF,Wedeking P,Kumar K

更新日期：1995-06-01 00:00:00

abstract：:Ionic (diatrizoate, ioxaglate) and nonionic (iohexol, iosimide, iopromide, and iotrolan) contrast media (CM) were evaluated for their cytogenetic effects in lymphocytes. Heparinized blood was mixed with culture medium RPMI-1640 supplemented with phytohemagglutinin, fetal calf serum, and antibiotics. Plastic tubes cont...

journal_title：Investigative radiology

authors： Parvez Z,Kormano M,Moncada R,Eklund R

更新日期：1986-11-01 00:00:00

abstract：OBJECTIVES:The purpose of our study was to assess the potential for radiation dose reduction in digital postinterventional digital mammograms after marker placement. MATERIALS AND METHODS:One hundred consecutive cases of marker placement (hook-wire localization or postbiopsy clip marker placement), with 200 full-field...

journal_title：Investigative radiology

authors： Riedl CC,Jaromi S,Floery D,Pfarl G,Fuchsjaeger MH,Helbich TH

更新日期：2005-06-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Because of the greatly increased cost of nonionic, low-osmolar contrast material, some practitioners reserve its use for patients at high risk for an adverse contrast reaction. The authors attempt to evaluate the proportion of low-risk outpatients--when offered a choice between the more expensi...

journal_title：Investigative radiology

authors： Hopper KD,Matthews YL

更新日期：1993-04-01 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: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：OBJECTIVES:The aim of this study was to investigate the impact on metal artifacts and dose efficiency of using a tin filter in combination with high-energy threshold (TH) images of a photon-counting detector (PCD) computed tomography (CT) system. MATERIALS AND METHODS:A 3D-printed spine with pedicle screws was scanned...

journal_title：Investigative radiology

authors： Zhou W,Bartlett DJ,Diehn FE,Glazebrook KN,Kotsenas AL,Carter RE,Fletcher JG,McCollough CH,Leng S

更新日期：2019-04-01 00:00:00

abstract：RATIONAL AND OBJECTIVES:The purpose of this study was to evaluate the effects of variation in design parameters on the resultant radial force. We evaluated the influence of wire gauge, leg length, and number of bends on the radial force produced by z stents and compared these with radial forces produced by commercial s...

journal_title：Investigative radiology

authors： Snowhill PB,Nosher JL,Siegel RL,Silver FH

更新日期：2001-09-01 00:00:00

abstract：:The extent to which various concentrations of the paramagnetic metal ions [gadolinium (III), manganese (II), chromium (III), iron (III), nickel (II), copper (II), and cobalt (II)] affect proton magnetic relaxation times of distilled water, 4% human serum albumin (HSA), and dog plasma was studied in vitro. The pH of wa...

journal_title：Investigative radiology

authors： Barnhart JL,Berk RN

更新日期：1986-02-01 00:00:00

abstract：:The potential risk of a radiologic procedure often is compared with the potential benefit of the procedure. While risk vs. benefit analysis has been useful as a step toward increased communication and understanding among radiologists, referring physicians, and the general public, it has the disadvantage that risk and ...

journal_title：Investigative radiology

authors： Ritenour ER,Hendee WR

更新日期：1989-01-01 00:00:00

abstract：:Prior studies of the opacification-phase effects of left ventricular (LV) injection of angiographic contrast medium (CM) on LV size and function have yielded discrepant results. A sensitive ultrasonic technique was used to measure LV dimension (Di) in 10 open-chest dogs with physiologic heart rates, and injection of s...

journal_title：Investigative radiology

authors： LeWinter MM,Pavelec RS

更新日期：1982-09-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The capability of an indirect computed tomographic lymphography (CT-LG) using a nonionic monometric contrast medium iopamidol for visualizing breast lymphatic pathways was preliminarily tested. MATERIALS AND METHODS:In 10 female dogs, a total of 0.5 and 1 mL of undiluted iopamidol was injected...

journal_title：Investigative radiology

authors： Suga K,Ogasawara N,Yuan Y,Okada M,Matsunaga N,Tangoku A

更新日期：2003-02-01 00:00:00

abstract：:There are a number of sonographic findings seen in fibroadenoma of the breast. In a retrospective study, we examined the biopsy results of 59 masses given the sonographic diagnosis of fibroadenoma. We also reviewed the sonograms of an additional 26 biopsy-proven fibroadenomas that were not diagnosed as such with ultra...

journal_title：Investigative radiology

authors： Jackson VP,Rothschild PA,Kreipke DL,Mail JT,Holden RW

更新日期：1986-01-01 00:00:00

abstract：:The interdisciplinary approach to medical education has often been deficient in medical school curricula. Because of the nonintegrated approach to medical education, problem solving capabilities are not fostered. The clinical presentation of a patient, the imaging modalities used to investigate the patient, and the ul...

journal_title：Investigative radiology

authors： Oldham SA,Jacobson F

更新日期：1986-04-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Paclitaxel added to angiographic contrast medium (CM) has been shown to inhibit restenosis in the porcine coronary overstretch model. This study determined early local tissue concentrations after the administration of different paclitaxel doses and preparations. MATERIALS AND METHODS:Fifteen p...

journal_title：Investigative radiology

authors： Speck U,Scheller B,Abramjuk C,Grossmann S,Mahnkopf D,Simon O

更新日期：2004-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Interstitial laser photocoagulation (ILP) causes localized tissue necrosis. This study was performed to determine 1) whether the changes seen on computed tomography (CT) correspond to the necrosis pathologically, and 2) which CT technique best shows the necrosis. METHODS:Eighteen Wistar rats h...

journal_title：Investigative radiology

authors： Amin Z,Thurrell W,Spencer GM,Harries SA,Grant WE,Bown SG,Lees WR

更新日期：1993-12-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to investigate the impact of impaired renal function on gadolinium (Gd) retention in various organs after Gd-based contrast agent injection. MATERIALS AND METHODS:After local animal care and review committee approval, 23 normal mice and 26 with renal failure were divided into 4 tre...

journal_title：Investigative radiology

authors： Kartamihardja AA,Nakajima T,Kameo S,Koyama H,Tsushima Y

更新日期：2016-10-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors determine the value of contrast-enhanced, three-dimensional (3D) magnetic resonance angiography (MRA) in the assessment of the renal arteries in comparison with conventional arteriography (CA). METHODS:One hundred three patients (71 m, 32 f) were evaluated with both CA and 3D MRA. ...

journal_title：Investigative radiology

authors： Hany TF,Leung DA,Pfammatter T,Debatin JF

更新日期：1998-09-01 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

authors： Ringertz HG,Carlsson E,Tyberg JV

更新日期：1976-11-01 00:00:00

abstract：:Radiolabeled ioversol was injected intravenously into two male and two female beagle dogs (6.7 to 10.4 kg) at two dose levels each (0.2 and 1.0 g I/kg). Blood levels of radioactivity were monitored at 2, 5, 10, 20, 40, 60, 90, and 120 minutes and at one and two days. Urine and feces were collected in metabolism cages ...

journal_title：Investigative radiology

authors： Coveney JR,Robbins MS

更新日期：1989-06-01 00:00:00

abstract：:A series of 5-hydroxyacylamino-2,4,6-triiodo-N,N'-hydroxy-alkyl-isophtalamides was prepared in order to study the structural requirements for high water solubility and low toxicity. Among the amides substituted by 2-hydroxyethyl; 2,3-dihydroxypropyl; 1,3-dihydroxypropyl-; and 1,1-dihydroxy-methyl-2-oxyethyl- groups, t...

journal_title：Investigative radiology

authors： Pitrè D,Felder E

更新日期：1980-11-01 00:00:00

abstract：:Multiple intravenous injections of contrast media are used in radiology, but information regarding corresponding changes in the serum iodine concentrations and osmolality is lacking. We measured the changes in serum iodine concentration and serum osmolality in rabbits after a series of intravenous injections of contra...

journal_title：Investigative radiology

authors： Rubin DI,Kido DK,Morris TW,Fischer HW

更新日期：1987-03-01 00:00:00

abstract：:In this article, we propose a semiautomatic method for time-continuous contour detection in all phases of the cardiac cycle in magnetic resonance sequences. The method is based on multidimensional dynamic programming. After shape parameterization, cost hypercubes are filled with image-feature derived cost function val...

journal_title：Investigative radiology

authors： Uzümcü M,van der Geest RJ,Swingen C,Reiber JH,Lelieveldt BP

更新日期：2006-01-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to evaluate the diagnostic value of x-ray dark-field imaging in projection radiography-based depiction of pneumothoraces in the neonatal murine lung, a potentially life-threatening medical condition that requires a timely and correct diagnosis. MATERIALS AND METHODS:By the use of a ...

journal_title：Investigative radiology

authors： Hellbach K,Yaroshenko A,Willer K,Pritzke T,Baumann A,Hesse N,Auweter S,Reiser MF,Eickelberg O,Pfeiffer F,Hilgendorff A,Meinel FG

更新日期：2016-10-01 00:00:00

abstract：:Sixteen observers averaging 7.4 years experience in interpreting radiology images and 16 observers without radiology training were tested for their ability to detect low-contrast signals in structured noise backgrounds using a digital display system. No significant difference in true positives, false positives, time t...

journal_title：Investigative radiology

authors： Rackow PL,Spitzer VM,Hendee WR

更新日期：1987-04-01 00:00:00

abstract：:Using simple surgical techniques, experimental carotid aneurysms are created which simulate some types of human berry aneurysms, both in hemodynamic and radiographic behavior. End to side anastomoses of an external jugular vein graft to the common carotid artery can be carried out by radiologic personnel with no forma...

journal_title：Investigative radiology

authors： Kerber CW,Buschman RW

更新日期：1977-03-01 00:00:00

abstract：:Erythrocytes at various concentrations were examined with a sensitive A-mode ultrasonic scanner; simultaneous measurements were made under light microscopic control. Individual erythrocytes caused weak (about 1 dB) echoes while erythrocyte aggregates (ten to 100 cells) produced stronger echoes (up to 15 dB), grossly p...

journal_title：Investigative radiology

authors： Alanen A,Kormano M

更新日期：1985-08-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors studied premenopausal, perimenopausal, and postmenopausal women to determine if ultrasound bone velocity (UBV) on proximal phalanges of women reflect bone changes related to gonadal status and age. METHODS:A total of 166 healthy women-64 postmenopausal women (mean age 58.7 +/- 9.4 ...

journal_title：Investigative radiology

authors： Aguado F,Revilla M,Hernández ER,Villa LF,Rico H

更新日期：1997-01-01 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

authors： Segers J,Le Duc G,Laumonier C,Troprès I,Elst LV,Muller RN

更新日期：2005-09-01 00:00:00

abstract：:Experimental pulmonary arteritis was produced in rabbits by intravenous injection of alveolar macrophages from donor rabbits. These animals, along with matched controls, were studied with pulmonary angiography to test the hypothesis that angiography could detect the vasculitic process in life. The animals were then sa...

journal_title：Investigative radiology

authors： Hicken P,Hogg JC,Pare PD

更新日期：1980-07-01 00:00:00