Pharmacologic treatment of intimal hyperplasia after metallic stent placement in the peripheral arteries. An experimental study.

abstract：RATIONALE AND OBJECTIVES:To assess whether differences in cerebral atrophy and white matter lesions or in the presence of lactate and lipid signals can explain the observed differences in brain choline, creatine, and N-acetylaspartate levels between healthy elderly women and men. METHODS:In addition to standard magnet...

journal_title：Investigative radiology

authors： Sijens PE,Den Heijer T,De Leeuw FE,De Groot JC,Achten E,Heijboer RJ,Hofman A,Breteler MM,Oudkerk M

更新日期：2001-10-01 00:00:00

abstract：PURPOSE:The purpose of this study was to evaluate image quality of a spectral photon-counting detector (PCD) computed tomography (CT) system for evaluation of major arteries of the head and neck compared with conventional single-energy CT scans using energy-integrating detectors (EIDs). METHODS:In this institutional r...

journal_title：Investigative radiology

authors： Symons R,Reich DS,Bagheri M,Cork TE,Krauss B,Ulzheimer S,Kappler S,Bluemke DA,Pourmorteza A

更新日期：2018-03-01 00:00:00

abstract：OBJECTIVES:To prospectively evaluate the image quality and diagnostic accuracy of magnetic resonance cholangiopancreatography (MRCP) at 3.0 T compared with that at 1.5 T used for patients. MATERIALS AND METHODS:This study was approved by our institutional review board, and informed consent was obtained from all patien...

journal_title：Investigative radiology

authors： Onishi H,Kim T,Hori M,Murakami T,Tatsumi M,Nakaya Y,Nakamoto A,Osuga K,Tomoda K,Nakamura H

更新日期：2009-09-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To assess the influence of injection rates and volumes on the arrival time of contrast material (CM) in the common carotid artery, the jugular vein and the resulting arterial-venous transit time. Additionally the relationship between injection parameters and the extent of a CM plateau was evalu...

journal_title：Investigative radiology

authors： Herold T,Paetzel C,Völk M,Bachthaler M,Zorger N,Feuerbach S,Strotzer M,Lenhart M

更新日期：2004-02-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:The suitability of paramagnetic complexes as magnetic resonance contrast agents depends on various factors such as their relaxivity, stability, selectivity, and the inertness toward transmetallation by endogenous ions. The transmetallation of a series of 18 gadolinium complexes by the Zn2+ ion ...

journal_title：Investigative radiology

authors： Laurent S,Elst LV,Copoix F,Muller RN

更新日期：2001-02-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To develop a new animal model for the evaluation of the renal tolerance of contrast agent and its application to diatrizoate and iotrolan injections in comparison to saline and mannitol solution. MATERIALS AND METHODS:The nephrotoxic potential of intravenously injected contrast agents in Beagl...

journal_title：Investigative radiology

authors： Krause W,Gilles T

更新日期：2003-11-01 00:00:00

abstract：:Comparatively new in the roentgen evaluation of infants and children, xerography would appear to be ideal for portraying the pediatric airway. Since the radiation dose of xerography is higher than conventional radiography, its image quality is the subject of careful scrutiny in a pediatric setting here described in 23...

journal_title：Investigative radiology

authors： Scott JR,Kramer SS,Griscom NT

更新日期：1978-07-01 00:00:00

abstract：:The efficacy and safety of perfluoroctylbromide as a diagnostic contrast agent for direct lymphography was studied in mongrel dogs. This radiopaque perfluorocarbon has several advantages over Ethiodol. The liquid compound has injection times one-fifth of that required for Ethiodol. When dosages were three to four tim...

journal_title：Investigative radiology

authors： Liebner EJ

更新日期：1977-07-01 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：RATIONALE AND OBJECTIVES:To evaluate the role of granulocytes in reperfusion injury after liver transplantation. The authors injected radiolabeled granulocytes to determine if human liver graft outcome could be correlated with granulocyte accumulation. MATERIALS AND METHODS:Pure granulocyte suspension was prepared fro...

journal_title：Investigative radiology

authors： Ziser A,Forstrom LA,Plevak DJ,Sanchez-Urdazpal L,Gores GJ,Wiesner RH,Batts KP,Krom RA

更新日期：1996-03-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To evaluate the imaging characteristics of various iliac artery stents and stent-grafts in a multislice, computed tomography angiography (MSCTA) phantom study. METHODS:Twelve types of stents and three stent-grafts made of different materials (steel, nitinol, tantalum, cobalt-based alloy) were ...

journal_title：Investigative radiology

authors： Maintz D,Fischbach R,Juergens KU,Allkemper T,Wessling J,Heindel W

更新日期：2001-12-01 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：: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: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：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：:Altered concentrations of brain beta endorphin and spinal cord encephalin have been reported in mice with iatrogenic arachnoiditis. We measured beta-endorphin concentration in cerebrospinal fluid (CSF) in normal monkeys and in monkeys with various degrees of arachnoiditis resulting from myelography and spinal surgery ...

journal_title：Investigative radiology

authors： Lipman BT,Haughton VM

更新日期：1988-03-01 00:00:00

abstract：OBJECTIVE:The aim of the study was to assess the value of in vivo T2 measurements to noninvasively quantify myocardial fibrosis in diabetic mice at 11.75 T. Diabetic cardiomyopathy is characterized by extracellular matrix alteration and microcirculation impairment. These conditions might provide electrical heterogeneit...

journal_title：Investigative radiology

authors： Bun SS,Kober F,Jacquier A,Espinosa L,Kalifa J,Bonzi MF,Kopp F,Lalevee N,Zaffran S,Deharo JC,Cozzone PJ,Bernard M

更新日期：2012-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Optimal dose schedules and total dose of ionizing radiation for human central nervous system malignancy are not known. An animal model has been developed for the investigation of rat central nervous system response to proton irradiation using magnetic resonance imaging (MRI). A clinical MRI dev...

journal_title：Investigative radiology

authors： Kennedy AS,Archambeau JO,Archambeau MH,Holshouser B,Thompson J,Moyers M,Hinshaw D Jr,Slater JM

更新日期：1995-04-01 00:00:00

abstract：:Post-angioplasty restenosis (PARS) in atherosclerotic lesions of medium and small arteries occurs in about one-third of cases in the first year following percutaneous transluminal angioplasty (PTA) (early PARS). PARS includes acute spasm, dissection with reclosure, elastic recoil, fibrocellular proliferative response,...

journal_title：Investigative radiology

authors： Becker GJ,Lee BI,Waller BF,Barry KJ,Kaplan J,Connolly R,Dreesen RG,Nardella P

更新日期：1988-11-01 00:00:00

abstract：OBJECTIVES:: To evaluate the performance of a gadolinium-based contrast compound (P846) as well as an ultra-small particle of iron oxide agent (P904) in contrast-enhanced magnetic resonance angiography (MRA) in rabbits and to compare those agents with gadoterate meglumine (Gd-DOTA) for first pass and steady state imagi...

journal_title：Investigative radiology

authors： Kinner S,Maderwald S,Parohl N,Albert J,Corot C,Robert P,Barkhausen J,Vogt FM

更新日期：2011-08-01 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：OBJECTIVE:The aim of this study was to compare quantitative and semiquantitative parameters (signal-to-noise ratio [SNR], contrast-to-noise ratio [CNR], image quality, diagnostic confidence) from a standard brain magnetic resonance imaging examination encompassing common neurological disorders such as demyelinating dis...

journal_title：Investigative radiology

authors： Springer E,Dymerska B,Cardoso PL,Robinson SD,Weisstanner C,Wiest R,Schmitt B,Trattnig S

更新日期：2016-08-01 00:00:00

abstract：:A double-blind randomized study of ten patients compared Hexabrix 32% to Renografin-60 in TMJ arthrography. Equivalent volumes of contrast material were injected under fluoroscopic observation, with film quality and patient subjective response graded independently by three radiologists. In immediate arthrogram quality...

journal_title：Investigative radiology

authors： Katzberg RW

更新日期：1984-11-01 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：RATIONALE AND OBJECTIVES:Bolus injection of iodinated contrast media has been observed to alter myocardial mechanical function, but the consequences on cellular metabolism are poorly documented. Modifications of metabolic parameters (intracellular pH as well as adenosine triphosphate [ATP], phosphocreatine, and inorgan...

journal_title：Investigative radiology

authors： Goossens A,Vander Elst L,Van Haverbeke Y,Muller RN

更新日期：1995-01-01 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：PURPOSE:The aim of this study was to evaluate the feasibility of a prototype volume-interpolated breath-hold examination (VIBE) sequence using compressed sensing (VIBECS) for rapid multiphase arterial magnetic resonance imaging (MRI) at different temporal resolution during free-breathing in comparison with a convention...

journal_title：Investigative radiology

authors： Weiss J,Notohamiprodjo M,Taron J,Martirosian P,Nickel D,Bamberg F,Nikolaou K,Othman AE

更新日期：2018-10-01 00:00:00

abstract：:Because of the strong scientific evidence in support of radiation hormesis, we can no longer ignore this concept. There is, however, need for additional, carefully documented investigations in selected biological systems exposed to LLIR if the matter of radiation hormesis is to be settled once and for all. This need s...

journal_title：Investigative radiology

authors： Loken MK,Feinendegen LE

更新日期：1993-05-01 00:00:00

abstract：:A 144cerium-induced osteosarcoma was transplanted to athymic nude rats (Han:rnu/rnu). Nineteen of the tumor-bearing animals were used to demonstrate the characteristics of the osteosarcoma on magnetic resonance imaging (MRI) in comparison with a group of nine animals that had not received any tumor transplant. The tum...

journal_title：Investigative radiology

authors： Witzel JG,Bohndorf K,Prescher A,Adam G

更新日期：1992-03-01 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