Simultaneously acquired MR/PET images compared with sequential MR/PET and PET/CT: alignment quality.

Abstract:

PURPOSE:To compare anatomic alignment between morphologic and positron emission tomography (PET) images acquired in the abdomen and pelvis by using simultaneous magnetic resonance (MR)/PET, PET/computed tomography (CT), and retrospective MR/PET fusion and to compare alignment between MR and PET in simultaneous and sequential thoracic MR/PET by using different breathing, registration, and gating protocols. MATERIALS AND METHODS:Informed consent and institutional review board approval were obtained. The misalignment in 28 abdominal patient datasets was analyzed in simultaneous MR/PET, PET/CT, and retrospective MR/PET fusion. In seven thoracic MR/PET datasets, the effect of different breathing protocols, simultaneous, sequential, and MR-gated data acquisition was evaluated, and the effect of rigid registration versus nonregistered images was evaluated. Analysis of variance and subsequent Tukey test were used for statistical analysis. RESULTS:The misalignment in all abdominal organs was reduced in simultaneous MR/PET compared with retrospectively fused MR and PET images (means, 5.8 mm vs 11.9 mm; P < .001), and in the urinary bladder compared with PET/CT (means, 5.9 mm vs 11.0 mm; P < .007). Thoracic MR/PET with inspiratory breath-hold MR showed the largest misalignment (mean, 24.5 mm; P < .001). None of the other thoracic protocols that were composed of different acquisition, registration, or gating procedures differed significantly from one another. CONCLUSION:The alignment of hybrid datasets acquired in simultaneous whole-body MR/PET was more accurate than retrospective fusion in all investigated abdominal organs, and more accurate than PET/CT in the urinary bladder; the alignment of thoracic MR/PET with expiratory breath hold or free-breathing MR was more exact than with inspiratory MR. However in this preliminary work the clinical importance of these degrees of misalignment was not assessed.

journal_name

Radiology

journal_title

Radiology

authors

Brendle CB,Schmidt H,Fleischer S,Braeuning UH,Pfannenberg CA,Schwenzer NF

doi

10.1148/radiol.13121838

subject

Has Abstract

pub_date

2013-07-01 00:00:00

pages

190-9

issue

1

eissn

0033-8419

issn

1527-1315

pii

radiol.13121838

journal_volume

268

pub_type

杂志文章
  • Perfusion CT assessment of tissue hemodynamics following hepatic arterial infusion of increasing doses of angiotensin II in a rabbit liver tumor model.

    abstract:PURPOSE:To investigate the effects of increasing doses of angiotensin II on hepatic hemodynamics in the normal rabbit liver and in hepatic VX2 tumors by using dynamic contrast material-enhanced perfusion computed tomography (CT). MATERIALS AND METHODS:This study was approved by the institutional animal care and use co...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.11101868

    authors: Wright KC,Ravoori MK,Dixon KA,Han L,Singh SP,Liu P,Gupta S,Johnson VE,Kan Z,Kundra V

    更新日期:2011-09-01 00:00:00

  • Aortic and hepatic peak enhancement at CT: effect of contrast medium injection rate--pharmacokinetic analysis and experimental porcine model.

    abstract:PURPOSE:To investigate the effect of injection rate of contrast medium on aortic and hepatic peak enhancement at computed tomography. MATERIALS AND METHODS:Early pharmacokinetics of contrast enhancement was analyzed theoretically and simulated with a compartment model. Contrast enhancement curves were generated from t...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.206.2.9457200

    authors: Bae KT,Heiken JP,Brink JA

    更新日期:1998-02-01 00:00:00

  • Chronic mesenteric ischemia: evaluation with phase-contrast cine MR imaging.

    abstract:PURPOSE:To compare superior mesenteric artery (SMA) blood flow in healthy volunteers and patients with stenoses in the fasting state and after food intake by using phase-contrast (PC) cine magnetic resonance (MR) imaging. MATERIALS AND METHODS:Ten healthy subjects, four asymptomatic patients (three with 50% stenosis, ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.190.1.8259400

    authors: Li KC,Whitney WS,McDonnell CH,Fredrickson JO,Pelc NJ,Dalman RL,Jeffrey RB Jr

    更新日期:1994-01-01 00:00:00

  • Ultrasonographic evidence of gallbladder wall thickening in association with hypoalbuminemia.

    abstract::Retrospective evaluation of 125 consecutive gallbladder sonograms was done to determine the conditions under which a thickened gallbladder wall is identified. The population studied included a large number of chronic alcoholics. Forty-two patients (Group A) had thickened (greater than or equal to 3 mm) gallbladder wal...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.135.3.7384460

    authors: Fiske CE,Laing FC,Brown TW

    更新日期:1980-06-01 00:00:00

  • Ultrasound patterns of disorders affecting the gastrointestinal tract.

    abstract::A mass associated with the gastrointestinal tract was detected by sonography in 33 patients. Etiologies included primary or metastatic tumor; intussusception; inflammation secondary to bowel infarction, pancreatitis, or irradiation; and a dilated, fluid-filled gut related to retained gastric contents, obstruction, ile...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.135.1.7360950

    authors: Morgan CL,Trought WS,Oddson TA,Clark WM,Rice RP

    更新日期:1980-04-01 00:00:00

  • Cranial imaging in autosomal recessive osteopetrosis. Part II. Skull base and brain.

    abstract::The authors reviewed cranial imaging studies (radiographs, computed tomographic scans, and magnetic resonance [MR] images) in 13 infants and children with the autosomal recessive form of osteopetrosis to characterize patterns of skull base, brain, and cranial nerve involvement at presentation and with progression of d...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.183.1.1549660

    authors: Elster AD,Theros EG,Key LL,Chen MY

    更新日期:1992-04-01 00:00:00

  • Percutaneous biliary drainage: complications of 118 consecutive catheterizations.

    abstract::We have reviewed our experience with 118 biliary catheterization procedures in 109 patients from 1979 to 1984. Major complications (septic shock, hemorrhage, subphrenic abscess, and formation of an arteriovenous fistula) occurred in five patients (4.2%), three of whom died (2.5%). Minor complications occurred in 41 pa...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.158.1.3940380

    authors: Hamlin JA,Friedman M,Stein MG,Bray JF

    更新日期:1986-01-01 00:00:00

  • Predicting pathologic response to neoadjuvant chemotherapy in breast cancer by using MR imaging and quantitative 1H MR spectroscopy.

    abstract:PURPOSE:To compare changes in the concentration of choline-containing compounds (tCho) and in tumor size at follow-up after neoadjuvant chemotherapy (NAC) between patients who achieved pathologic complete response (pCR) and those who did not (non-pCR). MATERIALS AND METHODS:This study was approved by the institutional...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2512080553

    authors: Baek HM,Chen JH,Nie K,Yu HJ,Bahri S,Mehta RS,Nalcioglu O,Su MY

    更新日期:2009-06-01 00:00:00

  • Effects of a Thermal Accelerant Gel on Microwave Ablation Zone Volumes in Lung: A Porcine Study.

    abstract::Background Thermal ablation of cancers may be associated with high rates of local tumor progression. A thermal accelerant gel has been developed to improve the transmission of microwave energy in biologic tissues with the aim of enlarging the thermal ablation zone. Purpose To determine the effects of a thermal acceler...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2019181652

    authors: Maxwell AWP,Park WKC,Baird GL,Martin DW,Lombardo KA,Dupuy DE

    更新日期:2019-05-01 00:00:00

  • Azygos arch valves: prevalence and appearance at contrast-enhanced CT.

    abstract:PURPOSE:To evaluate the prevalence and appearance of azygos arch valves at intravenous contrast material-enhanced computed tomography (CT). MATERIALS AND METHODS:Findings of 309 intravenous contrast-enhanced spiral CT examinations of the chest were retrospectively reviewed. The presence of contrast material reflux int...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2301021216

    authors: Yeh BM,Coakley FV,Sanchez HC,Wilson MW,Reddy GP,Gotway MB

    更新日期:2004-01-01 00:00:00

  • Imaging and intervention in acute pancreatitis.

    abstract::An International Symposium was held in Atlanta in 1992 to present the state of the art of diagnostic evaluation and management of acute pancreatitis and to agree on an acceptable series of clinical definitions for classifying the disease and its complications. The symposium was composed of 40 internationally recognize...

    journal_title:Radiology

    pub_type: 杂志文章,评审

    doi:10.1148/radiology.193.2.7972730

    authors: Balthazar EJ,Freeny PC,vanSonnenberg E

    更新日期:1994-11-01 00:00:00

  • How useful is the alpha angle for discriminating between symptomatic patients with cam-type femoroacetabular impingement and asymptomatic volunteers?

    abstract:PURPOSE:To compare the alpha-angle measurements in volunteers and patients with femoroacetabular impingement (FAI) and to develop potential threshold values. MATERIALS AND METHODS:This study was approved by the institutional review board; all individuals signed informed consent. Magnetic resonance (MR) images at 1.5 T...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.12112479

    authors: Sutter R,Dietrich TJ,Zingg PO,Pfirrmann CW

    更新日期:2012-08-01 00:00:00

  • Nonsurgical treatment of arteriovenous malformations of the trunk and limb by transcatheter arterial embolization.

    abstract::Two patients with large arteriovenous malformations (AVM) were successfully treated by transcatheter selective arterial embolization with Gelfoam. An extensive lumbar retroperitoneal acquired AVM was markedly reduced, eliminating any clinical evidence of a persistent left-to-right shunt. A large localized congenital A...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/15.3.609

    authors: Stanley RJ,Cubillo E

    更新日期:1975-06-01 00:00:00

  • Intussusception: hydrostatic pressure equivalents for barium and meglumine sodium diatrizoate.

    abstract::The pressures generated by a barium suspension and various solutions of meglumine sodium diatrizoate in water were measured with a manometer. A pressure of 120 mm Hg was produced by a 3.5-foot (105-cm) column of 60% wt/vol barium and a 5-foot (150-cm) column of either a 1:3 or 1:4 solution of meglumine sodium diatrizo...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.175.1.2315470

    authors: Kuta AJ,Benator RM

    更新日期:1990-04-01 00:00:00

  • Rapid thrombectomy with a hydrodynamic catheter: results from a prospective, multicenter trial.

    abstract:PURPOSE:To evaluate efficacy and safety of a hydrodynamic rheolytic thrombectomy device for rapid percutaneous treatment of acute thromboembolic occlusions of native lower-extremity arteries and bypass grafts. MATERIALS AND METHODS:In 50 patients, thrombectomy was performed with the rheolytic catheter at four centers....

    journal_title:Radiology

    pub_type: 临床试验,杂志文章,多中心研究,随机对照试验

    doi:10.1148/radiology.205.3.9393520

    authors: Wagner HJ,Müller-Hülsbeck S,Pitton MB,Weiss W,Wess M

    更新日期:1997-12-01 00:00:00

  • Biliary drainage: conversion of external to internal drainage.

    abstract::A percutaneously inserted biliary drainage catheter was converted from external to internal drainage with the use of an additional catheter advanced through the gastrostomy opening. This technique was successful in one patient with unresectable cancer of the head of the pancreas, in whom it was performed to overcome t...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.167.1.3347730

    authors: Morita S,Matsumoto S,Soejima T,Odani R,Yokota T

    更新日期:1988-04-01 00:00:00

  • Endometrial Carcinoma: MR Imaging-based Texture Model for Preoperative Risk Stratification-A Preliminary Analysis.

    abstract::Purpose To evaluate the associations among mathematical modeling with the use of magnetic resonance (MR) imaging-based texture features and deep myometrial invasion (DMI), lymphovascular space invasion (LVSI), and histologic high-grade endometrial carcinoma. Materials and Methods Institutional review board approval wa...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2017161950

    authors: Ueno Y,Forghani B,Forghani R,Dohan A,Zeng XZ,Chamming's F,Arseneau J,Fu L,Gilbert L,Gallix B,Reinhold C

    更新日期:2017-09-01 00:00:00

  • Effects of negative pi mesons on immune responses in mice.

    abstract::Spleen cells from normal or preimmunized mice were exposed to graded doses of peak pions or 300-kVp x rays in vitro and then cultured in heavily irradiated mice to determine antibody production against sheep erythrocytes. The RBE for the primary antibody response was 1.46. Equal suppression of secondary responses was ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/126.3.803

    authors: Carlson DE

    更新日期:1978-03-01 00:00:00

  • Acute hematological tolerance to multiple fraction, whole body, low dose irradiation in an experimental murine system.

    abstract::Using a dose fractionation scheme patterned after the current regimen for treatment of disseminated non-Hodgkin lymphoma, the authors studied the effects of irradiation on progenitor and effector cells for hematopoiesis in five-month-old BC3F1 mice. Fractions of 20 or 50 rad (0.2 or 0.5 Gy) total body irradiation were...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.134.2.7352240

    authors: Melamed JS,Chen MG,Brown JW,Katagiri CA

    更新日期:1980-02-01 00:00:00

  • CT use in hospitalized pediatric trauma patients: 15-year trends in a level I pediatric and adult trauma center.

    abstract:PURPOSE:To evaluate the 15-year trend in the use of computed tomography (CT) in hospitalized pediatric trauma patients admitted to Harborview Medical Center (HMC) from 1996 to 2010. MATERIALS AND METHODS:This Health Insurance Portability and Accountability Act-compliant retrospective study was approved by the institut...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.13120865

    authors: Roudsari BS,Psoter KJ,Vavilala MS,Mack CD,Jarvik JG

    更新日期:2013-05-01 00:00:00

  • Renal arterial rupture complicating transluminal angioplasty: successful conservative management.

    abstract::Vessel rupture complicating transluminal angioplasty is an uncommon event, especially in the renal artery. The authors report such a case, which was treated with immediate balloon tamponade and did not require surgical intervention. Possible causes and appropriate management are discussed, as well as the need for repo...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.174.3.174-3-983

    authors: Ashenburg RJ,Blair RJ,Rivera FJ,Weigele JB

    更新日期:1990-03-01 00:00:00

  • Mapping Hypoxia in Renal Carcinoma with Oxygen-enhanced MRI: Comparison with Intrinsic Susceptibility MRI and Pathology.

    abstract::Purpose To cross-validate T1-weighted oxygen-enhanced (OE) MRI measurements of tumor hypoxia with intrinsic susceptibility MRI measurements and to demonstrate the feasibility of translation of the technique for patients. Materials and Methods Preclinical studies in nine 786-0-R renal cell carcinoma (RCC) xenografts an...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2018171531

    authors: Little RA,Jamin Y,Boult JKR,Naish JH,Watson Y,Cheung S,Holliday KF,Lu H,McHugh DJ,Irlam J,West CML,Betts GN,Ashton G,Reynolds AR,Maddineni S,Clarke NW,Parker GJM,Waterton JC,Robinson SP,O'Connor JPB

    更新日期:2018-09-01 00:00:00

  • Acute pulmonary embolism: ancillary findings at spiral CT.

    abstract:PURPOSE:To determine the value of parenchymal findings at contrast material-enhanced spiral computed tomography (CT) in patients suspected to have pulmonary embolism (PE). MATERIALS AND METHODS:Eighty-eight patients suspected to have PE underwent contrast-enhanced spiral CT and ventilation-perfusion scintigraphy. Conc...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.207.3.9609900

    authors: Coche EE,Müller NL,Kim KI,Wiggs BR,Mayo JR

    更新日期:1998-06-01 00:00:00

  • Lunotriquetral interosseous ligament of the wrist: MR appearances in asymptomatic volunteers and arthrographically normal wrists.

    abstract:PURPOSE:To determine whether the carpal lunotriquetral ligament (LTL) can be consistently seen and to establish the normal range of LTL appearances at magnetic resonance (MR) imaging as a basis for comparison with LTL tears. MATERIALS AND METHODS:MR imaging was used to identify and characterize the LTL in 75 wrists wi...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.191.1.8134570

    authors: Smith DK,Snearly WN

    更新日期:1994-04-01 00:00:00

  • Monocyte and/or macrophage infiltration of heart after myocardial infarction: MR imaging by using T1-shortening liposomes.

    abstract:PURPOSE:To test the hypothesis that magnetic resonance (MR) imaging R1 (R1 = 1/T1) mapping after selectively labeling monocytes with a T1-shortening contrast agent in vivo would enable the quantitative measurement of their spatiotemporal kinetics in the setting of infarct healing. MATERIALS AND METHODS:All procedures ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.12111863

    authors: Naresh NK,Xu Y,Klibanov AL,Vandsburger MH,Meyer CH,Leor J,Kramer CM,French BA,Epstein FH

    更新日期:2012-08-01 00:00:00

  • Differentiation of Recurrent Glioblastoma from Delayed Radiation Necrosis by Using Voxel-based Multiparametric Analysis of MR Imaging Data.

    abstract::Purpose To assess a volume-weighted voxel-based multiparametric (MP) clustering method as an imaging biomarker to differentiate recurrent glioblastoma from delayed radiation necrosis. Materials and Methods The institutional review board approved this retrospective study and waived the informed consent requirement. Sev...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2017161588

    authors: Yoon RG,Kim HS,Koh MJ,Shim WH,Jung SC,Kim SJ,Kim JH

    更新日期:2017-10-01 00:00:00

  • Assessment of acute renal transplant rejection with blood oxygen level-dependent MR imaging: initial experience.

    abstract:PURPOSE:To prospectively assess the oxygenation state of renal transplants and determine the feasibility of using blood oxygen level-dependent (BOLD) magnetic resonance (MR) imaging to differentiate between acute tubular necrosis (ATN), acute rejection, and normal function. MATERIALS AND METHODS:This HIPAA-compliant s...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2363041080

    authors: Sadowski EA,Fain SB,Alford SK,Korosec FR,Fine J,Muehrer R,Djamali A,Hofmann RM,Becker BN,Grist TM

    更新日期:2005-09-01 00:00:00

  • The double sac sign of early intrauterine pregnancy: use in exclusion of ectopic pregnancy.

    abstract::Pelvic sonograms from 61 consecutive patients with suspected ectopic pregnancy and an additional 17 proved ectopic pregnancy cases were reviewed retrospectively. Special attention was given to the appearance of the uterus and intrauterine fluid collections in the absence of a fetal pole. Criteria for the exclusion of ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.143.1.7063730

    authors: Bradley WG,Fiske CE,Filly RA

    更新日期:1982-04-01 00:00:00

  • Robotically Assisted Sonic Therapy as a Noninvasive Nonthermal Ablation Modality: Proof of Concept in a Porcine Liver Model.

    abstract::Purpose To determine the feasibility of creating a clinically relevant hepatic ablation (ie, an ablation zone capable of treating a 2-cm liver tumor) by using robotically assisted sonic therapy (RAST), a noninvasive and nonthermal focused ultrasound therapy based on histotripsy. Materials and Methods This study was ap...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2018171544

    authors: Smolock AR,Cristescu MM,Vlaisavljevich E,Gendron-Fitzpatrick A,Green C,Cannata J,Ziemlewicz TJ,Lee FT Jr

    更新日期:2018-05-01 00:00:00

  • Rectal cancer: comparison of accuracy of local-regional staging with two- and three-dimensional preoperative 3-T MR imaging.

    abstract:PURPOSE:To compare the local-regional staging accuracy of the conventional two-dimensional (2D) T2-weighted imaging protocol and of the three-dimensional (3D) T2-weighted imaging protocol for preoperative magnetic resonance (MR) imaging in rectal cancer patients. MATERIALS AND METHODS:This retrospective study was appr...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.09090587

    authors: Kim H,Lim JS,Choi JY,Park J,Chung YE,Kim MJ,Choi E,Kim NK,Kim KW

    更新日期:2010-02-01 00:00:00