Evaluation of the relationship between MR estimates of blood oxygen saturation and hypoxia: effect of an antiangiogenic treatment on a gliosarcoma model.

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：PURPOSE:To retrospectively evaluate positron emission tomography (PET)/magnetic resonance (MR) enterography for the differentiation of fibrotic strictures from inflammatory strictures in patients with Crohn disease. MATERIALS AND METHODS:This HIPAA-compliant retrospective study was approved by the institutional review...

journal_title：Radiology

authors： Catalano OA,Gee MS,Nicolai E,Selvaggi F,Pellino G,Cuocolo A,Luongo A,Catalano M,Rosen BR,Gervais D,Vangel MG,Soricelli A,Salvatore M

更新日期：2016-03-01 00:00:00

abstract：:Intravascular injection of some radiographic contrast media causes a fall in the concentration of unbound serum calcium (Ca++) and an increase in serum immunoreactive parathyroid hormone (iPTH). The decrease in Ca++ levels was attributed to the presence in the contrast media of calcium chelating agents (disodium edeta...

journal_title：Radiology

authors： Mallette LE,Gomez LS

更新日期：1983-06-01 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：PURPOSE:To design a chest radiography unit that eliminates scatter. MATERIALS AND METHODS:A scanning slit radiography unit that also incorporates a conventional grid was designed. The scanning slit geometry defined a 10-mm-wide beam at the image receptor. RESULTS:With a typical heavy-duty radiographic tube, the propo...

journal_title：Radiology

authors： Barnes GT,Wu X,Sanders PC

更新日期：1994-02-01 00:00:00

abstract：PURPOSE:To measure infrarenal abdominal aortic aneurysms and assess the implications and potential obstacles for placement of an endovascular aortic graft undergoing clinical testing in Europe. MATERIALS AND METHODS:Helical computed tomography was used to measure 77 infrarenal aortic aneurysms (77 patients) and the di...

journal_title：Radiology

authors： Moritz JD,Rotermund S,Keating DP,Oestmann JW

更新日期：1996-02-01 00:00:00

abstract：PURPOSE:To evaluate the potential of quantitative susceptibility (QS) and R2* mapping as surrogate biomarkers of clinically relevant, age-adjusted demyelination and iron deposition in multiple sclerosis (MS). MATERIALS AND METHODS:All study participants gave written informed consent, and the study was approved by the ...

journal_title：Radiology

authors： Rudko DA,Solovey I,Gati JS,Kremenchutzky M,Menon RS

更新日期：2014-09-01 00:00:00

abstract：:The sonograms of 34 patients with surgically proved pelvic hemoperitoneum were reviewed. In 15 of these patients clotted blood was found at surgery in the pelvis or cul-de-sac. In nine of these patients (60%), ultrasound demonstrated echogenic fluid collections or "masses" with an echogenicity equal to or greater than...

journal_title：Radiology

authors： Jeffrey RB,Laing FC

更新日期：1982-10-01 00:00:00

abstract：:Atlantoaxial subluxation is common in persons with Down syndrome. For radiologic screening to be valid, accurate measurement of the atlantoaxial distance (AAD) must be obtained from radiographs of the cervical spine. A radiopaque millimeter scale has been designed to simplify accurate measurement of the AAD from these...

journal_title：Radiology

authors： Singer SJ,Rubin IL,Strauss KJ

更新日期：1987-09-01 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 investigate the clinical parameters that are associated with the development of brain edema of hypertensive encephalopathy in patients with preeclampsia-eclampsia. MATERIALS AND METHODS:Twenty-eight patients with preeclampsia-eclampsia and neurologic symptoms underwent magnetic resonance (MR) imaging. Clini...

journal_title：Radiology

authors： Schwartz RB,Feske SK,Polak JF,DeGirolami U,Iaia A,Beckner KM,Bravo SM,Klufas RA,Chai RY,Repke JT

更新日期：2000-11-01 00:00:00

abstract：PURPOSE:To retrospectively determine the accuracy of endorectal magnetic resonance (MR) imaging in demonstrating seminal vesicle invasion (SVI) and to investigate the MR imaging features that can predict SVI. MATERIALS AND METHODS:The Institutional Review Board granted exempt status for this retrospective study, with ...

journal_title：Radiology

authors： Sala E,Akin O,Moskowitz CS,Eisenberg HF,Kuroiwa K,Ishill NM,Rajashanker B,Scardino PT,Hricak H

更新日期：2006-03-01 00:00:00

abstract：:Purpose To determine if the change in tumor apparent diffusion coefficient (ADC) at diffusion-weighted (DW) MRI is predictive of pathologic complete response (pCR) to neoadjuvant chemotherapy for breast cancer. Materials and Methods In this prospective multicenter study, 272 consecutive women with breast cancer were e...

journal_title：Radiology

authors： Partridge SC,Zhang Z,Newitt DC,Gibbs JE,Chenevert TL,Rosen MA,Bolan PJ,Marques HS,Romanoff J,Cimino L,Joe BN,Umphrey HR,Ojeda-Fournier H,Dogan B,Oh K,Abe H,Drukteinis JS,Esserman LJ,Hylton NM,ACRIN 6698 Trial Team a

更新日期：2018-12-01 00:00:00

abstract：PURPOSE:To compare contrast material-enhanced three-dimensional (3D) magnetic resonance (MR) angiography and multi-detector row computed tomographic (CT) angiography in the same patients for assessment of the aortoiliac and renal arteries, with digital subtraction angiography (DSA) as the standard of reference. MATERI...

journal_title：Radiology

authors： Willmann JK,Wildermuth S,Pfammatter T,Roos JE,Seifert B,Hilfiker PR,Marincek B,Weishaupt D

更新日期：2003-03-01 00:00:00

abstract：:Severe diarrhea and marked lower abdominal cramps are unusual manifestations of appendicitis. The authors performed a barium-enema examination (BE) on 9 pediatric patients who were ultimately shown to have a perforated appendix and pelvic abscesses. In 8 cases, the atypical symptoms initially led to an incorrect clini...

journal_title：Radiology

authors： Picus D,Shackelford GD

更新日期：1983-10-01 00:00:00

abstract：PURPOSE:To investigate the association of 7-T magnetic resonance (MR) imaging characteristics with metastatic nodal invasion, determined with histopathologic assessment in dissected sentinel lymph nodes of breast cancer patients. MATERIALS AND METHODS:Institutional review board approval and informed consent were obtai...

journal_title：Radiology

authors： Korteweg MA,Zwanenburg JJ,Hoogduin JM,van den Bosch MA,van Diest PJ,van Hillegersberg R,Eijkemans MJ,Mali WP,Luijten PR,Veldhuis WB

更新日期：2011-10-01 00:00:00

abstract：PURPOSE:To compare diagnostic performance and time efficiency of double-reading first-reader computer-aided detection (CAD) (DR FR CAD) followed by radiologist interpretation with that of an unassisted read using segmentally unblinded colonoscopy as reference standard. MATERIALS AND METHODS:The local ethical committee...

journal_title：Radiology

authors： Iussich G,Correale L,Senore C,Segnan N,Laghi A,Iafrate F,Campanella D,Neri E,Cerri F,Hassan C,Regge D

更新日期：2013-09-01 00:00:00

abstract：:Leigh disease, or subacute necrotizing encephalomyelopathy (SNE), is a familial, degenerative disorder characterized by lesions of the gray and white matter in the brain and spinal cord. Low attenuation in the putamina on computed tomography (CT) scans is considered to be characteristic of the disease. The authors use...

journal_title：Radiology

authors： Paltiel HJ,O'Gorman AM,Meagher-Villemure K,Rosenblatt B,Silver K,Watters GV

更新日期：1987-01-01 00:00:00

abstract：PURPOSE:To assess placental perfusion and permeability in mice with magnetic resonance (MR) imaging. MATERIALS AND METHODS:This study was conducted according to French law and National Institutes of Health recommendations for animal care. Twenty-two pregnant BALB/c mice were examined at 1.5 T with a single-section dua...

journal_title：Radiology

authors： Taillieu F,Salomon LJ,Siauve N,Clément O,Faye N,Balvay D,Vayssettes C,Frija G,Ville Y,Cuenod CA

更新日期：2006-12-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the efficacy of additional radiofrequency (RF) ablation by comparing the results of one and two sessions. MATERIALS AND METHODS:All patients gave written informed consent to participate in this institutional review board-approved prospective study. From September 2007 to February 2008...

journal_title：Radiology

authors： Huh JY,Baek JH,Choi H,Kim JK,Lee JH

更新日期：2012-06-01 00:00:00

abstract：:Evidence-based radiology (EBR) is an important tool for the practice of radiology. The user of the EBR approach identifies evidence in a systematic fashion and then assimilates information through in-depth, explicit critical review of the best-designed and most recent literature on the subject in question. Clinical de...

journal_title：Radiology

authors： Medina LS,Blackmore CC

更新日期：2007-08-01 00:00:00

abstract：:The postnatal outcome of nine patients with the prenatal diagnosis of fetal hydronephrosis is reported. In only three of the nine cases was true obstructive hydronephrosis demonstrated, and in only one of these cases (11%) the patient might have benefited from decompressive surgery at the time of diagnosis of the abno...

journal_title：Radiology

authors： Blane CE,Koff SA,Bowerman RA,Barr M Jr

更新日期：1983-04-01 00:00:00

abstract：PURPOSE:To determine if digital chest images could be compressed in a primary interpretation context without perceived loss of fidelity (below the visually lossless threshold) at transilluminated film or cathode ray tube (CRT) display. MATERIALS AND METHODS:One hundred forty-four posteroanterior radiographs were obtai...

journal_title：Radiology

authors： Slone RM,Muka E,Pilgram TK

更新日期：2003-08-01 00:00:00

abstract：:Purpose To determine the impact of nonvascular thoracic magnetic resonance (MR) imaging on the clinical decision making and diagnostic certainty of thoracic surgeons. Materials and Methods Seven thoracic surgeons at Massachusetts General Hospital, an academic quaternary referral hospital, participated in this 2-year, ...

journal_title：Radiology

authors： Ackman JB,Gaissert HA,Lanuti M,Digumarthy SR,Shepard JA,Halpern EF,Wright CD

更新日期：2016-08-01 00:00:00

abstract：:During a 16-year period, 42,888 clinical and radiographic breast studies were performed on 8,000 women. Of this number, 1,161 malignant and 5,270 benign lesions were histologically confirmed. Biopsy of 468 of the 721 breasts that had clustered calcifications not associated with a mass and that were subject to a five- ...

journal_title：Radiology

authors： Egan RL,McSweeney MB,Sewell CW

更新日期：1980-10-01 00:00:00

abstract：:The T1 and T2 relaxation times of primary tumors of the musculoskeletal system were calculated in 54 patients. No correlation was found between the relaxation values and the histopathologic type of the tumors. Lipoma had the same relaxation characteristics as normal fat. Otherwise tumors could be differentiated from n...

journal_title：Radiology

authors： Pettersson H,Slone RM,Spanier S,Gillespy T 3rd,Fitzsimmons JR,Scott KN

更新日期：1988-06-01 00:00:00

abstract：:A modified transfemoral technique for testicular venography and occlusion of the testicular vein (TV) was used to treat 30 patients with a total of 43 varicoceles (17 left-sided and 13 bilateral). Occlusion was satisfactory in all left varicoceles and 90% of right varicoceles. This coaxial technique facilitates subsel...

journal_title：Radiology

authors： Berkman WA,Price RB,Wheatley JK,Fajman WA,Sones PJ,Casarella WJ

更新日期：1984-04-01 00:00:00

abstract：:The authors adapted the transport system of a computed tomographic (CT) scanner with continuous rotation capability to examine complete lung subvolumes during a single breath hold. Twenty-four adult patients underwent scanning with up to 12 continuous 1-second rotations, and data acquisition was synchronized with long...

journal_title：Radiology

authors： Vock P,Soucek M,Daepp M,Kalender WA

更新日期：1990-09-01 00:00:00

abstract：:A retrospective study of 118 lymphoma patients revealed the computed tomographic brain scan to be sensitive to involvement of the orbit and the brain parenchyma by lymphoma. Brain parenchymal lymphoma was seen only in diffuse histiocytic lymphoma; dural infiltration was less readily detected. Leptomeningeal lymphoma c...

journal_title：Radiology

authors： Brant-Zawadzki M,Enzmann DR

更新日期：1978-10-01 00:00:00

abstract：:Seven infants born at our institution between July 1979 and June 1982 had congenital diaphragmatic hernia (CDH). Four cases of CDH were correctly identified by fetal ultrasonography. Diagnosis relied upon the demonstration of abdominal organs within the thorax. During this period, no false positive diagnoses of CDH we...

journal_title：Radiology

authors： Chinn DH,Filly RA,Callen PW,Nakayama DK,Harrison MR

更新日期：1983-07-01 00:00:00