Dual mechanisms for change in myocardial signal intensity by means of a single MR contrast medium: dependence on concentration and pulse sequence.

abstract：PURPOSE:To review the ultrasonographic (US), computed tomographic (CT), and magnetic resonance (MR) imaging findings in 13 patients with telangiectatic focal nodular hyperplasia (FNH) and to compare imaging features with histopathologic results from resected specimens. MATERIALS AND METHODS:US, helical multiphasic CT,...

journal_title：Radiology

authors： Attal P,Vilgrain V,Brancatelli G,Paradis V,Terris B,Belghiti J,Taouli B,Menu Y

更新日期：2003-08-01 00:00:00

abstract：PURPOSE:To describe magnetic resonance (MR) imaging features in patients with proved pilonidal sinus disease and to compare these features with those in a matched group of patients with proved fistula in ano to determine the accuracy with which MR imaging can be used to distinguish between the two diseases. MATERIALS ...

journal_title：Radiology

authors： Taylor SA,Halligan S,Bartram CI

更新日期：2003-03-01 00:00:00

abstract：:Ventricular fibrillation thresholds were measured in anesthetized, closed-chest dogs during the injection of Renografin 76 or Conray 400 into the left coronary artery. Both agents significantly lowered fibrillation threshold--Renografin to 58 +/- 7%; Conray to 20 +/- 5% of control, respectively. The experimental metho...

journal_title：Radiology

authors： Wolf GL,Kraft L,Kilzer K

更新日期：1978-10-01 00:00:00

abstract：PURPOSE:To approximate the functional relationship between invasively measured mean pulmonary arterial pressure (mPAP) and the phase-contrast magnetic resonance (MR) imaging-derived duration of vortical blood flow along the main pulmonary artery and to analyze its applicability for noninvasive diagnosis of pulmonary hy...

journal_title：Radiology

authors： Reiter G,Reiter U,Kovacs G,Olschewski H,Fuchsjäger M

更新日期：2015-04-01 00:00:00

abstract：PURPOSE:To test three-dimensional (3D), navigator-echo magnetic resonance (MR) coronary angiography in detecting stenoses of the coronary arteries. MATERIALS AND METHODS:Forty-two patients (age range, 50-79 years) underwent MR coronary angiography (1.5 T). A navigator-echo sequence was used. Two or three 15% overlappe...

journal_title：Radiology

authors： Sardanelli F,Molinari G,Zandrino F,Balbi M

更新日期：2000-03-01 00:00:00

abstract：:The records of 71 patients with adenoid cystic carcinoma of the salivary glands were reviewed to determine the dose response relationships for this aggressive tumor. Local control after treatment was determined for all patients and analyzed with respect to extent of surgery and dose of radiation. Of 70 patients who we...

journal_title：Radiology

authors： Simpson JR,Thawley SE,Matsuba HM

更新日期：1984-05-01 00:00:00

abstract：:Magnetic resonance (MR) imaging-related artifacts associated with five different aneurysm clips made of five different metals (commercially pure titanium, titanium alloy, Phynox, Elgiloy, and cobalt alloy) were evaluated. Aneurysm clips made of commercially pure titanium and titanium alloy produced the smallest artifa...

journal_title：Radiology

authors： Shellock FG,Kanal E

更新日期：1998-11-01 00:00:00

abstract：PURPOSE:To develop and demonstrate a method for regional evaluation of pulmonary perfusion and gas exchange based on intravenous injection of hyperpolarized xenon 129 ((129)Xe) and subsequent magnetic resonance (MR) imaging of the gas-phase (129)Xe emerging in the alveolar airspaces. MATERIALS AND METHODS:Five Fischer...

journal_title：Radiology

authors： Driehuys B,Möller HE,Cleveland ZI,Pollaro J,Hedlund LW

更新日期：2009-08-01 00:00:00

abstract：PURPOSE:To prospectively evaluate emboli detected at transcranial Doppler ultrasonography (US) and outcome of carotid angioplasty and stent placement and compare these findings in patients treated with the use of filtering cerebral protection devices (CPDs) with the findings in patients treated without the use of filte...

journal_title：Radiology

authors： Vos JA,van den Berg JC,Ernst SM,Suttorp MJ,Overtoom TT,Mauser HW,Vogels OJ,van Heesewijk HP,Moll FL,van der Graaf Y,Mali WP,Ackerstaff RG

更新日期：2005-02-01 00:00:00

abstract：PURPOSE:To quantify white matter (WM) and gray matter (GM) damage in patients who presented with clinically isolated syndrome (CIS), which is suggestive of multiple sclerosis (MS), by combining volume-based morphometry (VBM) and tract-based spatial statistics (TBSS). MATERIALS AND METHODS:This prospective HIPAA-compli...

journal_title：Radiology

authors： Raz E,Cercignani M,Sbardella E,Totaro P,Pozzilli C,Bozzali M,Pantano P

更新日期：2010-01-01 00:00:00

abstract：:Two cases demonstrated that intravenously injected contrast medium entered cystic lesions. It appears that both vascular opacification and transgression of the blood-brain barrier play major roles in contrast enhancement. ...

journal_title：Radiology

authors： Messina AV,Potts DG,Rottenberg D,Patterson RH

更新日期：1976-08-01 00:00:00

abstract：PURPOSE:To assess emergency ultrasonography (US) for detection of bowel and mesenteric injury from blunt trauma. MATERIALS AND METHODS:For 3 years, prospective data on all patients undergoing emergency US were recorded. Patients with bowel and mesenteric injury were identified, and physical examination, laboratory, co...

journal_title：Radiology

authors： Richards JR,McGahan JP,Simpson JL,Tabar P

更新日期：1999-05-01 00:00:00

abstract：PURPOSE:To determine the imaging characteristics of infected aortic aneurysms. MATERIALS AND METHODS:Review of records of patients with surgical and/or microbiologic proof of infected aortic aneurysm obtained over a 25-year period revealed 31 aneurysms in 29 patients. This study included 21 men and eight women (mean a...

journal_title：Radiology

authors： Macedo TA,Stanson AW,Oderich GS,Johnson CM,Panneton JM,Tie ML

更新日期：2004-04-01 00:00:00

abstract：:The effectiveness of three methods of assessing the patient body burden following 131I therapy was compared: (a) urine assay, (b) external exposure rate measurements, and (c) predictions based on a pretherapy diagnostic work-up. The urine assay method exhibited the greatest potential for error and personnel risk. The ...

journal_title：Radiology

authors： Thomas SR,Maxon HR,Fritz KM,Kereiakes JG,Connell WD

更新日期：1980-12-01 00:00:00

abstract：PURPOSE:To determine the reliability and efficacy of magnetic resonance (MR) cholangiography in demonstrating the site and extent of stricture. MATERIALS AND METHODS:In 40 patients with obstructive jaundice, three-dimensional MR cholangiography was performed with a sequence of mirrored fast imaging with steady-state p...

journal_title：Radiology

authors： Hall-Craggs MA,Allen CM,Owens CM,Theis BA,Donald JJ,Paley M,Wilkinson ID,Chong WK,Hatfield AR,Lees WR

更新日期：1993-11-01 00:00:00

abstract：PURPOSE:To evaluate diagnostic performance of three nonenhanced methods: variable-refocusing-flip angle (FA) fast spin-echo (SE)-based magnetic resonance (MR) angiography (variable FA MR) and constant-refocusing-FA fast SE-based MR angiography (constant-FA MR) and flow-sensitive dephasing (FSD)-prepared steady-state fr...

journal_title：Radiology

authors： Lim RP,Fan Z,Chatterji M,Baadh A,Atanasova IP,Storey P,Kim DC,Kim S,Hodnett PA,Ahmad A,Stoffel DR,Babb JS,Adelman MA,Xu J,Li D,Lee VS

更新日期：2013-04-01 00:00:00

abstract：PURPOSE:To retrospectively determine whether there is a relationship between the intranodular blood supply evaluated at computed tomography (CT) during arterial portography (CTAP) and CT during hepatic arteriography (CTHA) and the magnetic resonance (MR) imaging signal intensity of nodules associated with cirrhosis. M...

journal_title：Radiology

authors： Shinmura R,Matsui O,Kobayashi S,Terayama N,Sanada J,Ueda K,Gabata T,Kadoya M,Miyayama S

更新日期：2005-11-01 00:00:00

abstract：:The posterior wall of the bronchus intermedius (PWBI) is outlined on most lateral chest radiographs by air in the lumen and in adjacent lung. In a prospective review over a 19-month interval, the authors found 36 patients whose PWBI was thick, defined as thickness greater than the normal upper limit of 3.0 mm (33 pati...

journal_title：Radiology

authors： Schnur MJ,Winkler B,Austin JH

更新日期：1981-06-01 00:00:00

abstract：PURPOSE:To evaluate the effectiveness of noninvasive magnetic resonance (MR) imaging-guided focused ultrasonographic (US) ablation of breast carcinomas. MATERIALS AND METHODS:Before undergoing tumor resection, 12 patients with invasive breast carcinomas were treated with MR imaging-guided focused US ablation consistin...

journal_title：Radiology

authors： Gianfelice D,Khiat A,Amara M,Belblidia A,Boulanger Y

更新日期：2003-06-01 00:00:00

abstract：:Twenty-four patients with hepatocellular carcinoma or cholangiocarcinoma were treated with hepatic artery infusion (HAI) of chemotherapeutic agents (14 patients) or hepatic artery embolization (HAE) (11 patients). One patient had a combination of the two treatments. Ten of the 14 (71%) patients who underwent HAI demon...

journal_title：Radiology

authors： Charnsangavej C,Chuang VP,Wallace S,Soo CS,Bowers T

更新日期：1983-04-01 00:00:00

abstract：:The radiopharmaceutical iodine 131 metaiodobenzylguanidine (I-131 MIBG) has been shown to locate pheochromocytomas scintigraphically with a false-negative rate of approximately 13%. To improve image quality and reduce the false-negative rate, I-123 was examined as a radioactive label for MIBG, as it has many advantage...

journal_title：Radiology

authors： Lynn MD,Shapiro B,Sisson JC,Beierwaltes WH,Meyers LJ,Ackerman R,Mangner TJ

更新日期：1985-06-01 00:00:00

abstract：PURPOSE:To analyze the contribution of the transverse relaxation parameter (T2), macroscopic field inhomogeneities (B0), and blood volume fraction (BVf) to blood oxygen level-dependent (BOLD)-based magnetic resonance (MR) measurements of blood oxygen saturation (SO2) obtained in a brain tumor model. MATERIALS AND METH...

journal_title：Radiology

authors： Christen T,Lemasson B,Pannetier N,Farion R,Remy C,Zaharchuk G,Barbier EL

更新日期：2012-02-01 00:00:00

abstract：:Fifty-one patients underwent both radionuclide and ultrasound studies of the hepatobiliary system. Eleven patients had large bile duct obstruction, six had intrahepatic diffuse small duct obstruction, and 37 had no obstruction. In all 11 patients with large duct obstruction, the radionuclide images were abnormal, but ...

journal_title：Radiology

authors： Klingensmith WC 3rd,Johnson ML,Kuni CC,Dunne MG,Fritzberg AR

更新日期：1981-01-01 00:00:00

abstract：:Between 1956 and 1978, nine patients with solitary plasmacytoma of bone (SPB) and seven with extramedullary plasmacytoma (EMP) were treated at the University of Washington Hospital and Swedish Tumor Institute. All but one patient had local radiotherapy. In the SPB group, six of nine patients progressed to multiple mye...

journal_title：Radiology

authors： Tong D,Griffin TW,Laramore GE,Kurtz JM,Russell AH,Groudine MT,Herron T,Blasko JC,Tesh DW

更新日期：1980-04-01 00:00:00

abstract：:Radiotherapy of verrucous carcinoma has frequently been associated with anaplastic transformation and poor response. No anaplastic transformation was observed in the 6 patients receiving radiotherapy as the primary treatment, and control of disease was favorable compared with 5 surgically treated patients. Four of the...

journal_title：Radiology

authors： Schwade JG,Wara WM,Dedo HH,Phillips TL

更新日期：1976-09-01 00:00:00

abstract：:Studies of 23 pediatric patients with pachygyriclike changes (PLCs) examined with computed tomography (CT) and magnetic resonance (MR) imaging were reviewed to determine topographic patterns and correlate them with various clinical syndromes and degrees of neurologic impairment. Three types of topographic distribution...

journal_title：Radiology

authors： Titelbaum DS,Hayward JC,Zimmerman RA

更新日期：1989-12-01 00:00:00

abstract：:Digital subtraction angiography (DSA) was used to study the cardiovascular system in more than 400 patients and was specifically compared with conventional angiography of the aorta and renal arteries in 30 patients. For the renal arteries, the overall accuracy of DSA was 71% (50/70). Excluding 11 cases of inadequate v...

journal_title：Radiology

authors： Buonocore E,Meaney TF,Borkowski GP,Pavlicek W,Gallagher J

更新日期：1981-05-01 00:00:00

abstract：PURPOSE:To compare a T1-weighted, three-dimensional (3D), gradient-echo (GRE) sequence for magnetic resonance (MR) imaging of the body (volumetric interpolated breath-hold examination, or VIBE) with a two-dimensional (2D) GRE breath-hold equivalent. MATERIALS AND METHODS:Twenty consecutive patients underwent 1.5-T MR ...

journal_title：Radiology

authors： Rofsky NM,Lee VS,Laub G,Pollack MA,Krinsky GA,Thomasson D,Ambrosino MM,Weinreb JC

更新日期：1999-09-01 00:00:00

abstract：:This study evaluated the feasibility of treatment of abdominal aortic aneurysm (AAA) by means of intraluminal bypass. Artificial aortic aneurysms with fusiform Dacron conduits were created at surgery , a weft-knit Dacron tube with balloon-expandable stents attached at both ends was inserted transfemorally through a 14...

journal_title：Radiology

authors： Laborde JC,Parodi JC,Clem MF,Tio FO,Barone HD,Rivera FJ,Encarnacion CE,Palmaz JC

更新日期：1992-07-01 00:00:00

abstract：PURPOSE:To test previously defined ultrasound (US) criteria for identification of partial-thickness tears of the rotator cuff. MATERIALS AND METHODS:Before shoulder arthroscopy, 52 patients with shoulder pain for more than 3 months were examined with a 7.5-MHz commercially available linear-array transducer and a stand...

journal_title：Radiology

authors： van Holsbeeck MT,Kolowich PA,Eyler WR,Craig JG,Shirazi KK,Habra GK,Vanderschueren GM,Bouffard JA

更新日期：1995-11-01 00:00:00