Black-blood diffusion-weighted EPI acquisition of the liver with parallel imaging: comparison with a standard T2-weighted sequence for detection of focal liver lesions.

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：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：:The hardcopy recording technologies of video cameras, slow-scan (digital spot) recorders, and laser film printers are presented and compared. Slow-scan (digital spot) recorders offer a few advantages when compared with multiformat video cameras. But only laser film printers provide the high-quality hardcopy recordings...

journal_title：Investigative radiology

authors： Siegel EL,Bishop MD,Wetzel LH,Anderson WF,McMillan JH

更新日期：1991-02-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to evaluate a high spatial resolution 3-dimensional (3D) contrast-enhanced magnetic resonance (CE-MR) venography protocol for evaluation of intracranial venous system using highly accelerated parallel imaging at 3.0 T. MATERIALS AND METHODS:Ten patients (4 male, 6 female; age,...

journal_title：Investigative radiology

authors： Nael K,Fenchel M,Salamon N,Duckwiler GR,Laub G,Finn JP,Villablanca JP

更新日期：2006-10-01 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：OBJECTIVES:We compared the image quality and diagnostic performance of 2 fat-suppression methods for black-blood T2-weighted fast spin-echo (FSE), which are as follows: (a) short T1 inversion recovery (STIR; FSE-STIR) and (b) spectral adiabatic inversion recovery (SPAIR; FSE-SPAIR), for detection of acute myocardial in...

journal_title：Investigative radiology

authors： Srichai MB,Lim RP,Lath N,Babb J,Axel L,Kim D

更新日期：2013-01-01 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：PURPOSE:The aim of this study was to determine to what degree current compressed sensing methods are capable of accelerating clinical magnetic resonance neuroimaging sequences. METHODS:Two 2-dimensional clinical sequences were chosen for this study because of their long scan times. A pilot study was used to establish ...

journal_title：Investigative radiology

authors： Sharma SD,Fong CL,Tzung BS,Law M,Nayak KS

更新日期：2013-09-01 00:00:00

abstract：:The cerebrovascular toxicity of three water-soluble contrast agents with a low hypertonicity (metrizamide, ioxaglate, iopamidol) was tested. Blood-brain barrier damage after carotid injection was assessed using 32P autoradiography and fluorescent microscopy after Evans blue staining. The damage to carotid endothelium ...

journal_title：Investigative radiology

authors： Gonsette RE,Liesenborgh L

更新日期：1980-11-01 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：: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：:Urine samples were collected from 200 subjects undergoing intravenous pyelography. The urine histamine levels were compared with those of 132 normal control subjects, 11 subjects with systemic mastocytosis, six subjects with idiopathic anaphylaxis, and ten subjects experiencing mild anaphylactic reactions during aller...

journal_title：Investigative radiology

authors： Kaliner M,Dyer J,Merlin S,Shelton A,Greenhill A,Treadwell G,McKenna W,Lieberman P

更新日期：1984-03-01 00:00:00

abstract：:Dense cavitary "photopenia" was observed on 21 of 200 consecutive stress perfusion scintigrams. A prominent finding in many cases, it sometimes occupied only a portion of the region overlying the ventricular cavity, was often seen in some projections and not others, and was frequently adjacent to myocardial perfusion ...

journal_title：Investigative radiology

authors： Dae M,Canhasi B,Botvinick E,Olvera S,Schechtmann N,Engelstad B,Hattner R,Schiller N,O'Connell W,Faulkner D

更新日期：1985-07-01 00:00:00

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：RATIONALE AND OBJECTIVES:The object of this study was to determine by flow cytometry the cellular and DNA content of the washings of core biopsy samples and needles obtained during stereotactic core biopsies of clinically occult suspicious lesions. METHODS:Fourteen-gauge core multipass biopsy inner-needle saline washi...

journal_title：Investigative radiology

authors： Stomper PC,Budnick RM,Stewart CC

更新日期：1998-01-01 00:00:00

abstract：OBJECTIVES:Thermal dose in tumor tissue is a key factor for regional hyperthermia (HT) combined with chemotherapy and for drug delivery using thermosensitive liposomes (TSL). It influences therapy outcome, affects the accumulation of liposomes, and triggers the content release from TSL in the target tissue. For the dev...

journal_title：Investigative radiology

authors： Peller M,Schwerdt A,Hossann M,Reinl HM,Wang T,Sourbron S,Ogris M,Lindner LH

更新日期：2008-12-01 00:00:00

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 design and implementation of a digital radiology image management system requires the definition, evaluation, and comparison of appropriate measures of system performance. The mean throughput rate is an important measure of the actual performance of a finished system. The mean throughput rate identifies the transm...

journal_title：Investigative radiology

authors： Cox GG,Templeton AW,Anderson WH,Cook LT,Hensley KS,Dwyer SJ 3rd

更新日期：1986-02-01 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: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:Magnetic resonance-guided high-intensity focused ultrasound (MR-HIFU) is a method to heat lesions noninvasively to a stable, elevated temperature and a well-suited method to induce local hyperthermia (41°C-43°C) in deep-seated tissues. Magnetic Resonance (MR) imaging provides therapy planning on anatomical i...

journal_title：Investigative radiology

authors： Kneepkens E,Heijman E,Keupp J,Weiss S,Nicolay K,Grüll H

更新日期：2017-10-01 00:00:00

abstract：OBJECTIVES:The aim of this study was to develop and verify a method to obtain good temporal resolution T2-weighted 4-dimensional (4D-T2w) magnetic resonance imaging (MRI) by using motion information from T1-weighted 4D (4D-T1w) MRI, to support treatment planning in MR-guided radiotherapy. MATERIALS AND METHODS:Ten pat...

journal_title：Investigative radiology

authors： Freedman JN,Collins DJ,Bainbridge H,Rank CM,Nill S,Kachelrieß M,Oelfke U,Leach MO,Wetscherek A

更新日期：2017-10-01 00:00:00

abstract：:The magnitude and timing of the effects of postural change on pulmonary blood flow distribution were studied in dogs by means of computed tomography (CT) and radioactive microspheres. A change in the mean attenuation values was demonstrated by CT in the anterior and posterior lung zones after change from the supine to...

journal_title：Investigative radiology

authors： Kuribayashi S,Garnic JD,Abrams HL

更新日期：1982-11-01 00:00:00

abstract：PURPOSE:To evaluate the dependency of tumor contrast enhancement (CE) in regard to protein-binding properties of contrast agents, using 4 different agents with a wide range of protein-binding capacities in a standardized rat brain glioma model. MATERIAL AND METHODS:Sixteen rats with implanted brain gliomas were evalua...

journal_title：Investigative radiology

authors： Wintersperger BJ,Runge VM,Tweedle MF,Jackson CB,Reiser MF

更新日期：2009-02-01 00:00:00

abstract：:Three facets of dual-energy quantitative computed tomography are studied: (1) the algorithm for postprocessing data (the methods of Cann, Laval-Jeantet et al, Goodsitt et al [two methods], and Nickoloff et al); (2) the influence of choice of tissue-equivalent materials for calibration; and (3) the difference between c...

journal_title：Investigative radiology

authors： van Kuijk C,Grashuis JL,Steenbeek JC,Schütte HE,Trouerbach WT

更新日期：1990-08-01 00:00:00

abstract：OBJECTIVES:The purpose of this study was to develop and validate a computer-aided diagnosis (CAD) tool for automatic classification of pulmonary nodules seen on low-dose computed tomography into solid, part-solid, and non-solid. MATERIALS AND METHODS:Study lesions were randomly selected from 2 sites participating in t...

journal_title：Investigative radiology

authors： Jacobs C,van Rikxoort EM,Scholten ET,de Jong PA,Prokop M,Schaefer-Prokop C,van Ginneken B

更新日期：2015-03-01 00:00:00

abstract：:Analysis of 46 sacroiliac joints removed in toto at random during routine autopsies was undertaken to define the pathologic and radiographic alterations of this joint in middle-aged and elderly patients. Each joint was sectioned, photographed and radiographed and large microscopic slides were prepared. Sacroiliac oste...

journal_title：Investigative radiology

authors： Resnick D,Niwayama G,Goergen TG

更新日期：1975-11-01 00:00:00

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：:We compared the damage resulting from intradermal injection of four commonly used radiographic contrast media in laboratory rats. Sixty percent meglumine diatrizoate (Reno M 60) and ioxaglate (Hexabrix) produced significantly more ulceration and crusting on gross inspection and more necrosis, edema, and hemorrhage on ...

journal_title：Investigative radiology

authors： Cohan RH,Leder RA,Bolick D,Herzberg AJ,Hedlund LW,Wheeler CT,Helms MJ,Dunnick NR

更新日期：1990-05-01 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