Cirrhotic nodules: association between MR imaging signal intensity and intranodular blood supply.

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. MATERIALS AND METHODS:Neither institutional review board approval nor informed consent was required for retrospective reviews of medical records and images. One hundred fourteen hepatocellular nodules 10 mm or greater in largest diameter in 58 patients (39 men, 19 women; mean age, 61 years) with cirrhosis were evaluated at CTAP, CTHA, and MR imaging. The CTAP and CTHA nodule findings were divided into three main types: Type A nodules were isoattenuating at CTAP and hypoattenuating at CTHA; type B nodules, slightly hypoattenuating at CTAP and hypoattenuating at CTHA; and type C nodules, strongly hypoattenuating at CTAP and hyperattenuating at CTHA. The relationships between the CTAP and CTHA findings and the MR imaging signal intensity among these nodules were analyzed by using the chi(2) test. RESULTS:On T1-weighted MR images, 27 (63%) of 43 type A nodules were hyperintense, nine (39%) of 23 type B nodules were isointense, and 19 (48%) of 40 type C nodules were hypointense; differences were not significant. On T2-weighted MR images, 31 (72%) of 43 type A nodules were hypointense (P < .05), 12 (52%) of 23 type B nodules were isointense, and 34 (85%) of 40 type C nodules were hyperintense (P < .05). CONCLUSION:There was a significant association between intranodular blood supply and nodule signal intensity on T2-weighted MR images. However, study findings did not show whether the blood itself (ie, blood volume or blood flow amount) directly influenced the signal intensity.

journal_name

Radiology

journal_title

Radiology

authors

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

doi

10.1148/radiol.2372041389

subject

Has Abstract

pub_date

2005-11-01 00:00:00

pages

512-9

issue

2

eissn

0033-8419

issn

1527-1315

pii

237/2/512

journal_volume

237

pub_type

杂志文章
  • Transcervical recanalization of strictures in the postoperative fallopian tube.

    abstract:PURPOSE:To evaluate use of transcervical recanalization in patients with reocclusion of the proximal fallopian tube after failed surgery to reverse sterilization or failed tuboplasty to treat inflammatory disease. MATERIALS AND METHODS:The standard technique for transcervical recanalization was attempted in seven pati...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.191.2.8153330

    authors: Lang EK,Dunaway HH

    更新日期:1994-05-01 00:00:00

  • Aortic dissection: magnetic resonance imaging.

    abstract::Fifteen patients with suspected or known aortic dissection were imaged with magnetic resonance (MR). Thirteen of these patients were eventually shown to have dissection. In most instances the diagnosis was established by aortography and/or computed tomography (CT) prior to the MR study. Surgical proof (6/13) and/or ao...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.155.2.3983390

    authors: Amparo EG,Higgins CB,Hricak H,Sollitto R

    更新日期:1985-05-01 00:00:00

  • Dynamic CT measurement of pulmonary enhancement in piglets with experimental acute respiratory distress syndrome.

    abstract:PURPOSE:To investigate whether analysis of a washout curve of contrast material obtained with serial computed tomography (CT) enables differentiation between hydrostatic pulmonary edema and pulmonary edema caused by increased capillary permeability. MATERIALS AND METHODS:The institutional committee on animal experimen...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2392042177

    authors: Schueller-Weidekamm C,Wassermann E,Redl H,Prokop M,Zimpfer M,Herold C,Germann P,Ullrich R

    更新日期:2006-05-01 00:00:00

  • Display of CT studies on a two-screen electronic workstation versus a film panel alternator: sensitivity and efficiency among radiologists.

    abstract::Prototype electronic workstations incorporated in networks linking computed tomographic (CT) and magnetic resonance imaging systems are being developed. The authors compared observer efficiency and sensitivity in reading body CT studies from a two-screen workstation (1,000-line monitors and 12-bit dynamic range in ima...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.174.3.2305060

    authors: Foley WD,Jacobson DR,Taylor AJ,Goodman LR,Stewart ET,Gurney JW,Stroka D

    更新日期:1990-03-01 00:00:00

  • Obstructive jaundice caused by polycystic liver disease.

    abstract::A patient with jaundice caused by obstruction of the biliary ducts by cysts in a polycystic liver is presented. Decompression of the liver cysts under ultrasound guidance resulted in a rapid decrease of the serum bilirubin level. ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.136.2.7403520

    authors: Ergün H,Wolf BH,Hissong SL

    更新日期:1980-08-01 00:00:00

  • Joint effusion in children with an irritable hip: US diagnosis and aspiration.

    abstract::Ninety-six children with an irritable hip possibly representing septic arthritis underwent clinical and laboratory evaluation, radiography, and ultrasonography (US). Forty had normal US scans; none were later shown to have septic arthritis, although three had osteomyelitis. Fifty-six children had effusion at US. Thirt...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.187.2.8475290

    authors: Zawin JK,Hoffer FA,Rand FF,Teele RL

    更新日期:1993-05-01 00:00:00

  • Cranial bone marrow in children: assessment of normal development with MR imaging.

    abstract::Magnetic resonance images of cranial bone marrow in 238 patients (246 examinations) less than 25 years old were reviewed to establish normal age-related standards. Bone marrow in the clivus and calvaria had uniformly low signal intensity (grade 1) on T1-weighted images in most infants less than 1 year old. The number ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.171.1.2928520

    authors: Okada Y,Aoki S,Barkovich AJ,Nishimura K,Norman D,Kjos BO,Brasch RC

    更新日期:1989-04-01 00:00:00

  • Common bile duct calculi: updated experience with dissolution with methyl tertiary butyl ether.

    abstract::The authors describe their experience with methyl tertiary butyl ether (MTBE) in a larger series of patients than previously reported in order to acquaint physicians with both its effectiveness for dissolution of common bile duct calculi and the limitations of its use. Ten patients with 13 biliary calculi underwent pe...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.166.3.3340760

    authors: Brandon JC,Teplick SK,Haskin PH,Sammon JK,Muhr WF,Hofmann AF,Gambescia RA,Zitomer N

    更新日期:1988-03-01 00:00:00

  • Wallerian degeneration demonstrated by magnetic resonance: spectroscopic measurements on peripheral nerve.

    abstract::Wallerian degeneration of rat sciatic nerves was induced by nerve section. Fifteen days later the degenerated nerves were compared with the intact contralateral nerves from the same animal. Histological sections showed the changes typical of wallerian degeneration: axonal degeneration and secondary demyelination. The ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.152.1.6729140

    authors: Jolesz FA,Polak JF,Ruenzel PW,Adams DF

    更新日期:1984-07-01 00:00:00

  • Reading protocol for dynamic contrast-enhanced MR images of the breast: sensitivity and specificity analysis.

    abstract:PURPOSE:To prospectively determine sensitivity and specificity of breast magnetic resonance (MR) imaging in a screening and symptomatic population by using independent double reading, with histologic or cytologic results or a minimum 18-month follow-up as the standard. MATERIALS AND METHODS:Informed consent and ethica...

    journal_title:Radiology

    pub_type: 杂志文章,多中心研究

    doi:10.1148/radiol.2363040735

    authors: Warren RM,Pointon L,Thompson D,Hoff R,Gilbert FJ,Padhani A,Easton D,Lakhani SR,Leach MO,UK Magnetic Resonance Imaging in Breast Screening (MARIBS) Study Group.

    更新日期:2005-09-01 00:00:00

  • Case 242: Radiation-induced Angiosarcoma.

    abstract::History In 2004, this woman received a diagnosis of invasive mammillary carcinoma, tubular variant, strongly positive for estrogen and progesterone receptors. Her lesion was found at screening mammography performed at an outside institution when she was 59 years old. She underwent partial mastectomy, with partial axil...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2017150456

    authors: Disharoon M,Kozlowski KF,Kaniowski JM

    更新日期:2017-06-01 00:00:00

  • Sodium imaging of human body organs and extremities in vivo.

    abstract::In vivo sodium magnetic resonance (MR) images of various structures--such as the heart, chest wall, kidneys, spine, liver, gallbladder, breasts, knees, hands, and feet--were obtained at 1.9 T. Improved sensitivity relative to standard spin-echo imaging was achieved with use of a modified three-dimensional acquisition ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.167.2.3357970

    authors: Granot J

    更新日期:1988-05-01 00:00:00

  • Electrotransfer at MR imaging: tool for optimization of gene transfer protocols--feasibility study in mice.

    abstract:PURPOSE:To test, by using an electrotransfer protocol for the transfection of skeletal muscle with naked plasmid complementary DNA, whether in vivo magnetic resonance (MR) imaging can help delineate either the spatial extent of the electric field when contrast agent is injected intraperitoneally or the transfection are...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2283020482

    authors: Paturneau-Jouas M,Parzy E,Vidal G,Carlier PG,Wary C,Vilquin JT,de Kerviler E,Schwartz K,Leroy-Willig A

    更新日期:2003-09-01 00:00:00

  • Liver size evaluated by ultrasound: ROC curves for hepatitis and alcoholism.

    abstract::A previous study determined the normal values and upper limits of liver size, as measured by the longitudinal and sagittal diameters in the midclavicular line and the midline. The present study was performed to determine which of the four sonographic diameters best differentiates between patients who have liver diseas...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.153.2.6385110

    authors: Niederau C,Sonnenberg A

    更新日期:1984-11-01 00:00:00

  • Improved patency of transjugular intrahepatic portosystemic shunts in humans: creation and revision with PTFE stent-grafts.

    abstract:PURPOSE:To determine whether polytetrafluoroethylene (PTFE) stent-grafts yield longer patency for creation or revision of transjugular intrahepatic portosystemic shunts (TIPS). MATERIALS AND METHODS:Fourteen PTFE-covered Wallstents were placed in 13 patients with TIPS: seven at shunt creation and seven during revision...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.213.3.r99dc28759

    authors: Haskal ZJ

    更新日期:1999-12-01 00:00:00

  • Living donor liver transplantation: complications in donors and interventional management.

    abstract:PURPOSE:To evaluate the incidence of postoperative complications in liver donors and the efficacy of interventional management for treating these complications. MATERIALS AND METHODS:The study included 386 consecutive donors: 219 donors underwent right lobectomy or segmentectomy and 167 donors underwent left lobectomy...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2302021318

    authors: Lee SY,Ko GY,Gwon DI,Song HY,Lee SG,Yoon HK,Sung KB

    更新日期:2004-02-01 00:00:00

  • Reflections on the early years of nuclear medicine.

    abstract::In the early years of nuclear medicine, physicians explored applied nuclear physics, and physicists pursued uncharted areas in medicine. Reflections from Jim Adelstein, MD, PhD, John McAfee, MD, Henry Wagner, MD, Fred Bonte, MD, Dave Kuhl, MD, and Alex Gottschalk, MD, add to the appreciation of the diversity in those ...

    journal_title:Radiology

    pub_type: 历史文章,杂志文章

    doi:10.1148/radiology.214.3.r00mr33623

    authors: Potchen EJ

    更新日期:2000-03-01 00:00:00

  • Surface shield: device to reduce personnel radiation exposure.

    abstract::A simple device is described that can reduce personnel exposure from scatter radiation by up to 75%. The device consists of an oblong piece of shielding (0.75-mm lead equivalent) that is taped to the side of the patient during percutaneous renal stone removal and other interventional procedures. Contrary to other shie...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.159.3.3704160

    authors: Young AT,Morin RL,Hunter DW,Nelson KL,Cardella JF,Castaneda-Zuniga WR,Amplatz K

    更新日期:1986-06-01 00:00:00

  • Photographic method of recording radiation fields using the localizer light for illumination.

    abstract::By interposing a camera with a fish-eye lens between the collimator and the illuminated field, radiotherapy ports can be recorded using the localizer light for illumination. An acrylic mold of the camera was used to maintain alignment and immobilization during the necessarily long exposures. The authors consider this ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/123.3.801

    authors: Pantoja E,Frede T,Leininger V

    更新日期:1977-06-01 00:00:00

  • Changes in primary breast cancer heterogeneity may augment midtreatment MR imaging assessment of response to neoadjuvant chemotherapy.

    abstract:PURPOSE:To evaluate whether changes in magnetic resonance (MR) imaging heterogeneity may aid assessment for pathologic complete response (pCR) to neoadjuvant chemotherapy (NACT) in primary breast cancer and to compare pCR with standard Response Evaluation Criteria in Solid Tumors response. MATERIALS AND METHODS:Instit...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.14130569

    authors: Parikh J,Selmi M,Charles-Edwards G,Glendenning J,Ganeshan B,Verma H,Mansi J,Harries M,Tutt A,Goh V

    更新日期:2014-07-01 00:00:00

  • Fractures of the hands and feet in child abuse: imaging and pathologic features.

    abstract:PURPOSE:To determine the imaging and histopathologic appearance of fractures of the hands and feet in abused infants. MATERIALS AND METHODS:The imaging findings in 11 abused infants with fractures of the hands and feet were examined retrospectively. All 11 infants underwent skeletal surveys; five infants also underwen...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.203.1.9122400

    authors: Nimkin K,Spevak MR,Kleinman PK

    更新日期:1997-04-01 00:00:00

  • Radiographic chest abnormalities in adult hemophilia.

    abstract::The chest radiographs of 33 adult hemophiliacs were reviewed for possible pulmonary features of this disease. Only 7 patients showed no abnormalities; 12 patients exhibited scarring, fibrosis, and pleural thickening of the lung, interpreted as the sequelae of intrapulmonary hemorrhage or hemothorax. The remaining 14 p...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/118.1.41

    authors: Putman CE,Gamsu G,Zinn D,McLoud T

    更新日期:1976-01-01 00:00:00

  • Perimesencephalic Hemorrhage: Yield of Single versus Multiple DSA Examinations-A Single-Center Study and Meta-Analysis.

    abstract::Purpose To quantify the rate of detection of aneurysms at follow-up digital subtraction angiography (DSA) after initial DSA with results negative for aneurysms in subjects with perimesencephalic (PM) nonaneurysmal subarachnoid hemorrhage. Materials and Methods This single-center retrospective study and meta-analysis w...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2016152402

    authors: Potter CA,Fink KR,Ginn AL,Haynor DR

    更新日期:2016-12-01 00:00:00

  • Detection of fat in a renal cell carcinoma mimicking angiomyolipoma.

    abstract::The authors report a case of renal cell carcinoma in which computed tomography (CT) revealed fatty tissue and calcification within a solid renal mass. The detection of a mass with negative CT numbers at CT and increased echogenicity at ultrasound led to the incorrect diagnosis of angiomyolipoma (renal hamartoma). The ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.188.2.8327690

    authors: Strotzer M,Lehner KB,Becker K

    更新日期:1993-08-01 00:00:00

  • Distal radius in adolescent girls with anorexia nervosa: trabecular structure analysis with high-resolution flat-panel volume CT.

    abstract:PURPOSE:To examine trabecular microarchitecture with high-resolution flat-panel volume computed tomography (CT) and bone mineral density (BMD) with dual-energy x-ray absorptiometry (DXA) in adolescent girls with anorexia nervosa (AN) and to compare these results with those in normal-weight control subjects. MATERIALS ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2492080173

    authors: Bredella MA,Misra M,Miller KK,Madisch I,Sarwar A,Cheung A,Klibanski A,Gupta R

    更新日期:2008-12-01 00:00:00

  • Osteopetrosis: MR characteristics at 1.5 T.

    abstract::Four patients with proved osteopetrosis (three with the infantile malignant form and one with the benign form) were examined with magnetic resonance imaging at 1.5 T. All patients were studied in the coronal and sagittal planes using both short and long repetition time/echo time sequences. The infantile malignant form...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.161.1.3763870

    authors: Rao VM,Dalinka MK,Mitchell DG,Spritzer CE,Kaplan F,August CS,Axel L,Kressel HY

    更新日期:1986-10-01 00:00:00

  • Jugular venous reflux in cerebral radionuclide angiography.

    abstract::Jugular venous reflux was observed in six routine cerebral radionuclide angiograms. Repeat studies during a Valsalva maneuver failed to reproduce the reflux. In one case the reflux appeared to be related to the arm position; but in the other five cases, the cause remains unknown. Such reflux may be mistaken for superi...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/118.3.730

    authors: Yeh EL,Pohlman GP,Ruetz PP,Meade RC

    更新日期:1976-03-01 00:00:00

  • A modular computer system for the nuclear medicine/ultrasound laboratory.

    abstract::Computer-controlled graphic displays are a necessity in many nuclear medicine studies. The authors propose using a set-up consisting of three modules: (a) a display system based on television technology; (b) an instrument interface employing list mode and having a low information loss rate; and (c) flexible modular so...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/124.3.759

    authors: Noz ME,Schimpf JH,Maguire GQ Jr

    更新日期:1977-09-01 00:00:00

  • CT of thrombosed arteriovenous malformations in children.

    abstract::Thrombosed arteriovenous malformations (AVMs) in children are rare lesions that may present with headaches or a seizure disorder. Thirteen patients (4 months to 21 years of age) with this lesion were examined with computed tomography (CT). In 11 patients surgical confirmation was obtained, and the other two patients w...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.150.2.6691090

    authors: Mitnick JS,Pinto RS,Lin JP,Rose H,Lieberman A

    更新日期:1984-02-01 00:00:00

  • Posterior circulation in moyamoya disease: angiographic study.

    abstract:PURPOSE:To clarify the angiographic findings of the posterior circulation in patients with moyamoya disease. MATERIALS AND METHODS:Seventy-six patients with idiopathic moyamoya disease were studied with conventional angiography. The angiographic findings were reviewed for steno-occlusive lesions, collateral vessels, a...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.197.1.7568830

    authors: Yamada I,Himeno Y,Suzuki S,Matsushima Y

    更新日期:1995-10-01 00:00:00