Searching for lung nodules. Visual dwell indicates locations of false-positive and false-negative decisions.

abstract：RATIONALE AND OBJECTIVES:This study evaluated the value of dynamically enhanced fast low-angle shot (FLASH) magnetic resonance (MR) imaging in measuring cardiac output with and without dipyridamole pharmacological stress. METHODS:Ten subjects underwent rest and stress MR imaging. Rest images were acquired using electr...

journal_title：Investigative radiology

authors： Tello R,Hartnell GG,Hill TC,Cerel A,Finn JP,Kamalesh M,Cohen M,Lewis S

更新日期：1996-11-01 00:00:00

abstract：:The study aim was to define potential differences and advantages in magnetic resonance (MR) patterns of tumoral contrast enhancement using either a small molecular, extracellular fluid contrast enhancer [Gd-DTPA] or a macromolecular agent [albumin-(Gd-DTPA)20], designed for primary intravascular biodistribution. MR im...

journal_title：Investigative radiology

authors： Wikström MG,Moseley ME,White DL,Dupon JW,Winkelhake JL,Kopplin J,Brasch RC

更新日期：1989-08-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Magnetic resonance imaging (MRI) techniques seem to be very promising for 3D dosimetry studies, but long imaging acquisition time limits their use. A new fast T1 mapping protocol, easy to implement on a conventional MR imager, has been used to determine dose distributions on Fricke gels. METHO...

journal_title：Investigative radiology

authors： Calmet C,Vincensini D,Bonnet J,Bertino C,Catala A,Martinez M,Joffre F

更新日期：1999-03-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to evaluate the potential of iterative metal artifact reduction (IMAR) for the improvement of computed tomography (CT)-based position emission tomography (PET) attenuation correction in the vicinity of metal implants and compare it with dual-energy-based metal artifact reduction stra...

journal_title：Investigative radiology

authors： Schabel C,Gatidis S,Bongers M,Hüttig F,Bier G,Kupferschlaeger J,Bamberg F,la Fougère C,Nikolaou K,Pfannenberg C

更新日期：2017-01-01 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：:Computed tomography followed by sectional radiography and photography as performed on eight cadaveric specimens in order to define the anatomy and normal motion of both the proximal and the distal radioulnar articulations. Osseous landmarks were defined that allowed measurement of rotation at the glenohumeral, proxima...

journal_title：Investigative radiology

authors： Cone RO,Szabo R,Resnick D,Gelberman R,Taleisnik J,Gilula LA

更新日期：1983-11-01 00:00:00

abstract：:Polylysine covalently linked to moieties of gadopentetate (Gd-DTPA), for use as a macromolecular blood pool marker for contrast material-enhanced magnetic resonance imaging (MRI), was characterized by means of physicochemical measurements and pharmacokinetics in rats and rabbits and compared with Gd-DTPA. Gd-DTPA-poly...

journal_title：Investigative radiology

authors： Schuhmann-Giampieri G,Schmitt-Willich H,Frenzel T,Press WR,Weinmann HJ

更新日期：1991-11-01 00:00:00

abstract：:The authors investigated the effect on the brain of red blood cells that had been modified by contrast media. Rat blood was mixed with an equivolume of contrast media, and up to 200 microL of the mixture was infused to the internal carotid artery of the rat. Evans blue was administered intravenously to assess the inte...

journal_title：Investigative radiology

authors： Miyazawa T,Nakagawa H,Oshino N

更新日期：1989-05-01 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 purpose of our investigation was to determine whether iopanoyl glucuronide, the major metabolite of iopanoic acid (Telepaque), undergoes hydrolysis by bacterial beta-glucuronidase in dogs. The conjugated compound was identified and quantitated by elemental analysis, fluorescent excitation analysis, thin-layer chro...

journal_title：Investigative radiology

authors： Thoeni RF,Goldberg HI,Moss AA,Lin SK,Brito AC

更新日期：1978-05-01 00:00:00

abstract：:Twenty-six patients who had received 43 grafts were studied before and after coronary artery vein bypass surgery. Cine ventriculograms taken in the right anterior oblique projection were analyzed and regional ejection fractions calculated. Single and multiple grafts were considered separately as were thrombosed and pa...

journal_title：Investigative radiology

authors： Martin EC,Wixson D,Baltaxe HA

更新日期：1977-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:It is widely believed that down-sizing catheters, and possibly needles, will decrease damage to the entry vessel in the performance of angiography. The purposes of this in vitro experiment are to determine if smaller needles produce less arterial wall damage than larger needles and to assess th...

journal_title：Investigative radiology

authors： Smith DC,Hamlin JA,Jensen DA,Pappas JM,Westengard JC,Saukel GW

更新日期：1992-10-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to assess the impact of oral water and intravenous furosemide challenges on blood oxygenation level-dependent magnetic resonance imaging measurements in the kidney and to examine the contribution of R2 (=1/T2) to changes in R2* (=1/T2*). MATERIALS AND METHODS:This Health Insurance ...

journal_title：Investigative radiology

authors： Vivier PH,Storey P,Chandarana H,Yamamoto A,Tantillo K,Khan U,Zhang JL,Sigmund EE,Rusinek H,Babb JS,Bubenheim M,Lee VS

更新日期：2013-07-01 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：: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：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：:For magnetic resonance, the established class of intravenous contrast media is the gadolinium-based contrast agents. In the 3 decades since initial approval, these have proven in general to be very safe for human administration. However, in 2006, a devastating late adverse reaction to administration of the less stable...

journal_title：Investigative radiology

authors： Runge VM

更新日期：2017-06-01 00:00:00

abstract：OBJECTIVE:To determine the prevalence of nephrogenic systemic fibrosis (NSF) in patients with chronic kidney disease (CKD) who have received gadopentetate dimeglumine. MATERIALS AND METHODS:We retrospectively studied all patients who underwent contrast-enhanced magnetic resonance imagings (CE-MRIs) between January 1, ...

journal_title：Investigative radiology

authors： Hope TA,Herfkens RJ,Denianke KS,LeBoit PE,Hung YY,Weil E

更新日期：2009-03-01 00:00:00

abstract：OBJECTIVES:The aim of this pilot study was to assess post-treatment apparent diffusion coefficient (ADC) changes of diffuse large B-cell lymphoma lesions on respiratory-gated whole-body diffusion-weighted imaging (DWI), with integrated (18)F-fluoro-2-deoxyglucose positron emission tomography/computed tomography (PET/CT...

journal_title：Investigative radiology

authors： Lin C,Itti E,Luciani A,Zegai B,Lin SJ,Kuhnowski F,Pigneur F,Gaillard I,Paone G,Meignan M,Haioun C,Rahmouni A

更新日期：2011-05-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to evaluate the effect of structured reports (SRs) in comparison to nonstructured, free-text (FT) rectal magnetic resonance imaging (MRI) reports in patients with histologically proven rectal cancer and potential effects of both types of reporting on referring surgeons' satisfaction...

journal_title：Investigative radiology

authors： Nörenberg D,Sommer WH,Thasler W,DʼHaese J,Rentsch M,Kolben T,Schreyer A,Rist C,Reiser M,Armbruster M

更新日期：2017-04-01 00:00:00

abstract：:The magnitude and time course of contrast enhancement in spontaneous canine brain tumors was determined for two contrast agents: meglumine iothalamate and sodium meglumine ioxaglate. Tumor enhancement during contrast infusion and at 5, 10, 15, 30 and 45 minutes was measured using quantitative computed tomography. Bloo...

journal_title：Investigative radiology

authors： Fike JR,Cann CE,Norman D,Turrel JM,LeCouteur RA,Pflugfeld CM,Borcich JK

更新日期：1984-11-01 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：RATIONALE AND OBJECTIVES:The purpose of this study was to determine whether cerebral fat embolism demonstrated reversible or irreversible findings in magnetic resonance (MR) imaging over time and to compare the features in MR images with histologic findings in a cat model. MATERIALS AND METHODS:MR images were obtained...

journal_title：Investigative radiology

authors： Kim HJ,Lee CH,Lee SH,Moon TY

更新日期：2003-10-01 00:00:00

abstract：:Gastrografin and Amipaque with identical iodine content and flavoring were orally administered in 100 ml doses to 10 healthy volunteers in a double-blind crossover study. The nonionic Amipaque has only about one third of the osmolality of Gastrografin, and draws less fluid into the bowel lumen. Consequently there is l...

journal_title：Investigative radiology

authors： Johansen JG

更新日期：1978-11-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:New targeted microbubbles directed to the GPIIb IIIa receptor have been developed. The objective was to determine whether targeting microbubbles to clots would enhance ultrasound imaging. Systematic studies were designed to determine whether in vitro methodology is an acceptable predictor of in...

journal_title：Investigative radiology

authors： Schumann PA,Christiansen JP,Quigley RM,McCreery TP,Sweitzer RH,Unger EC,Lindner JR,Matsunaga TO

更新日期：2002-11-01 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

abstract：:Various water soluble contrast media (WSCM) were injected subcutaneously into 970 hind feet of 485 rats. Gross morphologic changes were seen after the injection and analyzed as a function of various physicochemical characteristics of WSCM. The WSCM of larger volume, higher osmolality, higher iodine content, and meglum...

journal_title：Investigative radiology

authors： Kim SH,Park JH,Kim YI,Kim CW,Han MC

更新日期：1990-06-01 00:00:00

abstract：PURPOSE:To prospectively determine the accuracy of 1.5 Tesla (T) and 3 T magnetic resonance angiography (MRA) versus digital subtraction angiography (DSA) in the depiction of infrageniculate arteries in patients with symptomatic peripheral arterial disease. PATIENTS AND METHODS:A prospective 1.5 T, 3 T MRA, and DSA co...

journal_title：Investigative radiology

authors： Diehm N,Kickuth R,Baumgartner I,Srivastav SK,Gretener S,Husmann MJ,Jaccard Y,Do do D,Triller J,Bonel HM

更新日期：2007-06-01 00:00:00

abstract：:We evaluated the density distribution (anterior-posterior) of the right lung in 19 acutely anesthetized supine dogs using computed transmission tomography (CTT). Eleven dogs served as controls, and eight received 0.12 cc/kg of intravenously administered oleic acid. The latter were sequentially imaged over 1 hour. Nine...

journal_title：Investigative radiology

authors： Slutsky RA,Long S,Peck WW,Higgins CB,Mattrey R

更新日期：1984-05-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:To establish a pig model suitable for imitating pulmonary emboli to facilitate research in the diagnosis of pulmonary embolism. METHODS:Thirteen animals were anesthetized, mechanically ventilated, and subjected to pulmonary artery catheterization initiated from the right external jugular vein....

journal_title：Investigative radiology

authors： Amundsen T,Kvaerness J,Aadahl P,Waage A,Bjermer L,Odegård A,Haraldseth O

更新日期：2000-05-01 00:00:00