Magnetic resonance imaging as a monitor of changes in the irradiated rat brain. An aid in determining the time course of events in a histologic study.

abstract：RATIONALE AND OBJECTIVES:The authors differentiate breast lesions on sonography by measurements in two compression states that are perpendicular to each other. METHODS:Diameters of 100 breast lesions were measured preoperatively under lateromedial and craniocaudal compression with a new sonographic method. This method...

journal_title：Investigative radiology

authors： Richter K,Willrodt RG,Opri F,Heywang-Köbrunner SH

更新日期：1996-07-01 00:00:00

abstract：OBJECTIVE:To quantify independent pharmacokinetic parameters for differentiation of prostate pathology. MATERIAL AND METHODS:Twenty-seven patients with biopsy-proven prostate cancer (PSA: 1.4-16.1 ng/mL) underwent magnetic resonance imaging with a new dynamic contrast-enhanced, inversion-prepared dual-contrast gradien...

journal_title：Investigative radiology

authors： Franiel T,Lüdemann L,Rudolph B,Rehbein H,Staack A,Taupitz M,Prochnow D,Beyersdorff D

更新日期：2008-07-01 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：:The rates at which the paramagnetic compounds deoxyhemoglobin (Hb) and methemoglobin (MHb) form in vivo within an area of hemorrhage are unknown. The present experiment establishes the baseline concentrations and rates of change in paramagnetic hemoglobin concentrations, as well as the pH in normal heparinized and clo...

journal_title：Investigative radiology

authors： Taber KH,Migliore PJ,Pagani JJ,Ford JJ,McLauren T,Hayman LA

更新日期：1990-03-01 00:00:00

abstract：OBJECTIVE:To investigate the effect of saline chase injected at 2 different rates on computed tomography (CT) angiography. MATERIALS AND METHODS:This study was approved by our institutional animal study committee. Three injection protocols were used; contrast injection (24 mL, 0.8 mL/s) without saline chase (protocol ...

journal_title：Investigative radiology

authors： Lee CH,Goo JM,Bae KT,Lee HJ,Kim KG,Chun EJ,Park CM,Im JG

更新日期：2007-07-01 00:00:00

abstract：:Because of a need to correlate pulmonary microvascular changes with physiologic data during lung injury, in vitro and in vivo pulmonary capillary microangiography was performed on normal dogs and those subjected to oleic acid injury and glass bead microembolization. During these studies, no significant differences wer...

journal_title：Investigative radiology

authors： Clark RL,Friedman M,Kwock L,Zaremba J

更新日期：1983-01-01 00:00:00

abstract：OBJECTIVES:Multidetector-row computed tomography coronary images are usually analyzed in mid-diastole (MD). Because of slow coronary motion also in end-systole (ES), we evaluated the impact on image quality of including ES images and defined an efficient reconstruction protocol. MATERIAL AND METHODS:In 50 coronary mul...

journal_title：Investigative radiology

authors： Sanz J,Rius T,Kuschnir P,Fuster V,Goldberg J,Ye XY,Wisdom P,Poon M

更新日期：2005-03-01 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：:Patients with intracranial arteriovenous malformations (AVM) can expect significant mortality (15% to 20%) and morbidity (20% to 30%) over a 15-year to 20-year period. Recent advances in interventional neuroradiology, neurosurgery, neuroanesthesia, and stereotactic radiotherapy provide the opportunity to obliterate ma...

journal_title：Investigative radiology

authors： Graves VB,Duff TA

更新日期：1990-08-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The relative stability and selectivity of magnetic resonance (MR) imaging contrast agents were compared with in vitro transmetallation and ligand competition reactions. MATERIALS AND METHODS:A gadolinium (Gd)-DTPA-BIGA, Gd-DTPA-BMA, Gd-DTPA, or Gd-HP-DO3A solution was mixed with an equimolar s...

journal_title：Investigative radiology

authors： Puttagunta NR,Gibby WA,Puttagunta VL

更新日期：1996-10-01 00:00:00

abstract：OBJECTIVES:The objectives of this study were to assess the feasibility of magnetic resonance cholangiography (MRC) using biliary-secreted gadoxetic acid at 7 T and to compare it with T2-weighted (w) MRC at 3 T. MATERIALS AND METHODS:Ten healthy volunteers were examined on a 7-T whole-body magnetic resonance system. T2...

journal_title：Investigative radiology

authors： Fischer A,Kraff O,Orzada S,Nensa F,Schäfer LC,Ladd ME,Umutlu L,Lauenstein TC

更新日期：2014-05-01 00:00:00

abstract：:The problem of inhomogeneous mixing encountered during hepatic artery (HA) chemotherapy infusion was assessed and a practical solution examined. A glass model of the human HA distribution was used to determine mixing homogeneity of low flow (1.4 mL/minute) dye infusion into pulsatile flow (280-300 mL/minute) of a flui...

journal_title：Investigative radiology

authors： Barth KH,Lutz RJ,Kremers PW,Miller DL

更新日期：1988-07-01 00:00:00

abstract：:Recent publications of the magnetic resonance safety profile of neurostimulators, cardiac pacemakers, and other implanted devices imply that these devices are no longer a contraindication for magnetic resonance imaging. It is very promising that patients who have these implanted devices may in the future no longer be ...

journal_title：Investigative radiology

authors： Nitz WR,Brinker G,Diehl D,Frese G

更新日期：2005-12-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The effect of breathholding on pulmonary perfusion remains largely unknown. The aim of this study was to assess the effect of inspiratory and expiratory breathhold on pulmonary perfusion using quantitative pulmonary perfusion magnetic resonance imaging (MRI). METHODS AND RESULTS:Nine healthy v...

journal_title：Investigative radiology

authors： Fink C,Ley S,Risse F,Eichinger M,Zaporozhan J,Buhmann R,Puderbach M,Plathow C,Kauczor HU

更新日期：2005-02-01 00:00:00

abstract：:Blood samples from previous contrast reactors and nonreactor controls were incubated with diatrizoate and several contrast analogues. Total complement levels were assayed. All the agents caused complement activation generally proportional to their concentration. Reactors' sera responded to lower concentrations of cont...

journal_title：Investigative radiology

authors： Siegle RL,Lieberman P,Rice MC

更新日期：1983-07-01 00:00:00

abstract：:Electromagnetic flow measurement study was performed in 20 anesthetized dogs to evaluate the effect of selective celiac infusion of vasopressin on the hepatic arterial vasculature. Teh hepatic arterial flow showed a biphasic response with an initial decrease followed by a substantial increase in spite of a continued ...

journal_title：Investigative radiology

authors： Barr JW,Lakin RC,Rösch J

更新日期：1975-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Two independent gold standards and diagnoses from three-dimensional computed tomography (CT) images were used to examine the possibility that craniosynostosis is a binary abnormality that potentially may be diagnosed without error. METHODS:Surgical reports, histology of excised sutures, and th...

journal_title：Investigative radiology

authors： Pilgram TK,Vannier MW,Marsh JL,Kraemer BB,Rayne SC,Gado MH,Moran CJ,McAlister WH,Shackelford GD,Hardesty RA

更新日期：1994-10-01 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：OBJECTIVE:We sought to evaluate the influence of tube voltage on the visualization of acute myocardial infarction (MI) in cardiac multislice spiral computed tomography (MSCT). MATERIALS AND METHODS:Acute MI was induced in 12 domestic pigs by a 45-minute balloon occlusion of the left anterior descending artery. Delayed...

journal_title：Investigative radiology

authors： Mahnken AH,Bruners P,Mühlenbruch G,Emmerich M,Hohl C,Günther RW,Wildberger JE

更新日期：2007-02-01 00:00:00

abstract：:A battery of tests for toxicity assessment of new contrast media is reviewed. Cell toxicity in a protozoan culture (Blepharisma americanum); lethal dose determination in mice; EEG Spectral analysis following cisternography in rabbits; ED50 and LD50 determination by intra- and pericerebral injection in rats; intraciste...

journal_title：Investigative radiology

authors： Sovak M,Siefert HM,Ranganathan R

更新日期：1980-11-01 00:00:00

abstract：:Early detection of pancreatic ductal adenocarcinoma (PDAC) represents the most significant step toward the treatment of this aggressive lethal disease. Previously, we engineered a preclinical Thy1-targeted microbubble (MBThy1) contrast agent that specifically recognizes Thy1 antigen overexpressed in the vasculature of...

journal_title：Investigative radiology

authors： Bam R,Daryaei I,Abou-Elkacem L,Vilches-Moure JG,Meuillet EJ,Lutz A,Marinelli ER,Unger EC,Gambhir SS,Paulmurugan R

更新日期：2020-11-01 00:00:00

abstract：OBJECTIVE:To evaluate the effectiveness of a dual magnetic resonance-near infrared fluorescence optical imaging agent, poly(l-glutamic acid)-DTPA-Gd-NIR813, for both preoperative and intraoperative visualization and characterization of sentinel lymph nodes (SLN) in mice. MATERIALS AND METHODS:Poly(L-glutamic acid) was...

journal_title：Investigative radiology

authors： Melancon MP,Wang Y,Wen X,Bankson JA,Stephens LC,Jasser S,Gelovani JG,Myers JN,Li C

更新日期：2007-08-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to assess the diagnostic value and safety of the contrast agent gadoterate meglumine (Gd-DOTA, DOTAREM, Guerbet, Roissy CdG Cedex, France) in the setting of a postmarketing surveillance study. MATERIALS AND METHODS:Between January 2004 and October 2005, radiologists in 61 radiol...

journal_title：Investigative radiology

authors： Herborn CU,Honold E,Wolf M,Kemper J,Kinner S,Adam G,Barkhausen J

更新日期：2007-01-01 00:00:00

abstract：:Fractures modeled in the dried skull indicate that the initial plane of computed tomography (CT) section contributes to the accuracy of three-dimensional (3D) images generated from two-dimensional (2D) CT data. The authors retrospectively analyzed seven clinical cases of tripod zygomatic fractures that were imaged wit...

journal_title：Investigative radiology

authors： Levy RA,Kellman RM,Rosenbaum AE

更新日期：1991-05-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to quantify image quality gains of a moving coronary plaque phantom using dual-source computed tomography (DSCT) providing 83 milliseconds temporal resolution in direct comparison to 64 slice single-source multidetector CT (MDCT) with a temporal resolution of 165 milliseconds. MATE...

journal_title：Investigative radiology

authors： Reimann AJ,Rinck D,Birinci-Aydogan A,Scheuering M,Burgstahler C,Schroeder S,Brodoefel H,Tsiflikas I,Herberts T,Flohr T,Claussen CD,Kopp AF,Heuschmid M

更新日期：2007-03-01 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：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：:A feasibility study is described to provide quantitative texture measures to distinguish between normal lung, alveolar infiltrates and interstitial infiltrates. Advanced computer imaging technology and decision making processes were applied to distinguish between these textural patterns. The results, based on computer...

journal_title：Investigative radiology

authors： Tully RJ,Conners RW,Harlow CA,Lodwick GS

更新日期：1978-07-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:This study was devised to develop a method of measuring the acute effects of radiocontrast media on renal function and assessing the relationship of the dose of radiocontrast media infused with the incidence of radiocontrast-induced renal failure. In addition, the drug adenosine phosphate-magne...

journal_title：Investigative radiology

authors： Albert SG,Shapiro MJ,Brown WW,Goodgold H,Zuckerman D,Durham R,Kern M,Fletcher J,Wolverson M,Plummer ES

更新日期：1994-06-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The authors studied the incidence and distribution of orthopedic injuries sustained in Operation Desert Shield and Desert Storm by evaluating whether existing diagnostic imaging modalities were sufficient to diagnose the types of musculoskeletal injuries incurred. The authors also sought to det...

journal_title：Investigative radiology

authors： Truax AL,Chandnani VP,Chacko AK,Gonzalez DM

更新日期：1997-03-01 00:00:00