MR imaging for the preoperative planning of sphincter-saving surgery for tumors of the lower third of the rectum: use of intravenous and endorectal contrast materials.

Abstract:

PURPOSE:To evaluate the value of magnetic resonance (MR) imaging with a flexible surface coil in predicting the resectability of tumors in the lower rectum and the feasibility of sphincteral salvage. MATERIALS AND METHODS:In a prospective study, 61 patients with histologically proved primary adenocarcinoma of the lower or middle third of the rectum (<12 cm from the pectinate line) were examined at double-contrast-material-enhanced MR imaging with a circular polarized flexible surface coil. RESULTS:Assessment of anal sphincteral infiltration at MR imaging was excellent, with a specificity of 98% and a sensitivity of 100%. In the determination of tumor infiltration into adjacent organs (T4), the specificity was 100%, and the sensitivity was 90%, with surgical and histologic findings as the standards. While MR imaging showed negative nodes in 40 patients (stage N0 at MR imaging), histologic examination showed negative nodes in 27 patients and positive nodes in 34. At MR imaging, sensitivity was 68%, and specificity was 24%. CONCLUSION:While preoperative staging at MR imaging according to the TNM system still has limited value and accuracy, MR imaging provides the surgeon with valuable information regarding the presence of sphincteral invasion and the surrounding structures in patients with cancers in the lower third of the rectum.

journal_name

Radiology

journal_title

Radiology

authors

Urban M,Rosen HR,Hölbling N,Feil W,Hochwarther G,Hruby W,Schiessel R

doi

10.1148/radiology.214.2.r00fe08503

subject

Has Abstract

pub_date

2000-02-01 00:00:00

pages

503-8

issue

2

eissn

0033-8419

issn

1527-1315

journal_volume

214

pub_type

杂志文章
  • Synthetic ossicular replacements: normal and abnormal CT appearance.

    abstract::Twenty-two patients with synthetic ossicular replacements were studied with computed tomography (CT). Twelve patients had total ossicular replacement prostheses (TORPs), and ten patients had partial ossicular replacement prostheses (PORPs). Good results were achieved in 12 patients (eight with TORPs and four with PORP...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.163.3.3575730

    authors: Swartz JD,Berger AS,Zwillenberg S,Granoff DW,Popky GL

    更新日期:1987-06-01 00:00:00

  • Thalamic resting-state functional networks: disruption in patients with mild traumatic brain injury.

    abstract:PURPOSE:To explore the neural correlates of the thalamus by using resting-state functional magnetic resonance (MR) imaging and to investigate whether thalamic resting-state networks (RSNs) are disrupted in patients with mild traumatic brain injury (MTBI). MATERIALS AND METHODS:This HIPAA-compliant study was approved b...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.11110014

    authors: Tang L,Ge Y,Sodickson DK,Miles L,Zhou Y,Reaume J,Grossman RI

    更新日期:2011-09-01 00:00:00

  • Mammographic follow-up of nonpalpable low-suspicion breast abnormalities: one versus two views.

    abstract::A retrospective study involving 498 women with a total of 666 breast lesions was undertaken to determine the relative efficacy of one- and two-view mammography in the follow-up evaluation of "low-suspicion" abnormal mammographic findings. These abnormalities consisted of well-defined masses (47.1%), well-defined punct...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.180.2.2068300

    authors: Datoc PD,Hayes CW,Conway WF,Bosch HA,Neal MP

    更新日期:1991-08-01 00:00:00

  • Radiological visualization of the vestibular aqueduct. Technique and morphological features.

    abstract::Thin-section tomography in the lateral and off-lateral projections permits radiographic visualization of the vestibular aqueduct, which is seen as an inverted J. The proximal curved portion has a constant configuration, while the distal straight portion varies according to the width of the external aperture and may be...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/117.3.621

    authors: Gado MH,Arenberg IK

    更新日期:1975-12-01 00:00:00

  • Hepatocellular carcinoma: are combined CT during arterial portography and CT hepatic arteriography in addition to triple-phase helical CT all necessary for preoperative evaluation?

    abstract:PURPOSE:To determine whether the combination of CT during arterial portography (CTAP) and CT hepatic arteriography (CTHA) provides an added benefit to triple-phase helical CT (THCT) alone in the preoperative evaluation of hepatocellular carcinoma (HCC). MATERIALS AND METHODS:Fifty-two consecutive patients with patholo...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.215.2.r00ma30373

    authors: Jang HJ,Lim JH,Lee SJ,Park CK,Park HS,Do YS

    更新日期:2000-05-01 00:00:00

  • Treated thymic lymphoma: comparison of MR imaging with CT.

    abstract:PURPOSE:To determine the appearance of treated thymic lymphoma at magnetic resonance (MR) imaging and to compare the results with findings from posttherapy computed tomography (CT) and clinical outcome. MATERIALS AND METHODS:MR images and CT scans in 25 patients with thymic lymphoma were reviewed. Dimensions of residu...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.203.2.9114090

    authors: Spiers AS,Husband JE,MacVicar AD

    更新日期:1997-05-01 00:00:00

  • Why women resist screening mammography: patient-related barriers.

    abstract::Mammography utilization remains below the level needed to achieve the National Cancer Institute's year-2000 goals for reducing breast cancer mortality by 50%. Previous research has identified both patient and physician barriers. The authors interviewed 600 randomly selected women who were offered a free mammographic e...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.172.1.2740510

    authors: Rimer BK,Keintz MK,Kessler HB,Engstrom PF,Rosan JR

    更新日期:1989-07-01 00:00:00

  • Periventricular leukomalacia: correlation between MR imaging and autopsy findings during the first 2 months of life.

    abstract:PURPOSE:To correlate magnetic resonance (MR) imaging and pathologic findings in premature infants with periventricular leukomalacia (PVL). MATERIALS AND METHODS:Eight premature infants with PVL who died after 3-7 weeks of life were studied with in vivo T1-weighted MR imaging, and imaging patterns were compared with hy...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.189.1.8372220

    authors: Schouman-Claeys E,Henry-Feugeas MC,Roset F,Larroche JC,Hassine D,Sadik JC,Frija G,Gabilan JC

    更新日期:1993-10-01 00:00:00

  • Meniscal tears: MR demonstration of experimentally produced injuries.

    abstract::Magnetic resonance (MR) imaging was performed using a 1.5-T magnet on eight immature swine knees with surgically produced vertical and horizontal meniscal tears. Three radiologists, interpreting the images independently, detected all tears. Tears in the middle portion of the meniscus were best seen on sagittal views, ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.158.3.3945740

    authors: Beltran J,Noto AM,Mosure JC,Bools JC,Zuelzer W,Christoforidis AJ

    更新日期:1986-03-01 00:00:00

  • The columnar-lined esophagus--analysis of 26 cases.

    abstract::A review of 26 cases of columnar-lined (Barrett's) esophagus suggests that this lesion is more common than generally appreciated, usually arising consequent to reflux esophagitis. The radiologically detectable lesions frequently do not support the idea that Barrett's esophagus presents only with high esophageal ulcer ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/123.1.1

    authors: Robbins AH,Hermos JA,Schimmel EM,Friedlander DM,Messian RA

    更新日期:1977-04-01 00:00:00

  • Alzheimer disease: improved visual interpretation of PET images by using three-dimensional stereotaxic surface projections.

    abstract:PURPOSE:To compare the diagnostic usefulness of three-dimensional (3D) stereotaxic surface projection (SSP) with that of standard transaxial display in brain positron emission tomography (PET) in Alzheimer disease (AD). MATERIALS AND METHODS:Standard transaxial section display and 3D-SSP PET image sets obtained after ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.198.3.8628880

    authors: Burdette JH,Minoshima S,Vander Borght T,Tran DD,Kuhl DE

    更新日期:1996-03-01 00:00:00

  • Nonmalignant breast lesions: ADCs of benign and high-risk subtypes assessed as false-positive at dynamic enhanced MR imaging.

    abstract:PURPOSE:To evaluate the diffusion-weighted (DW) imaging characteristics of nonmalignant lesion subtypes assessed as false-positive findings at conventional breast magnetic resonance (MR) imaging. MATERIALS AND METHODS:This HIPAA-compliant retrospective study had institutional review board approval, and the need for in...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.12112672

    authors: Parsian S,Rahbar H,Allison KH,Demartini WB,Olson ML,Lehman CD,Partridge SC

    更新日期:2012-12-01 00:00:00

  • The long-term follow-up of 195 patients with renal failure: a preliminary report.

    abstract::Radiographic and bone mineral (BM) data were collected over a three-year period on 195 patients with chronic renal failure. Most women maintained BM on dyalysis, whereas 44% of the men lost BM (p less than 0.05). Following transplantation, 86% of the patients either maintained or restored BM. After parathyroidectomy, ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/122.3.643

    authors: Griffiths HJ,Zimmerman RE,Lazarus M,Lowrie E,Gottlieb MN,Phillips E,Pomerantz K

    更新日期:1977-03-01 00:00:00

  • Lung tumors associated with obstructive pneumonitis: US studies.

    abstract::Eleven patients who had lung tumors associated with obstructive pneumonitis and who failed to yield diagnostic material at conventional bronchoscopic biopsy underwent real-time ultrasonographic (US) studies and US-guided aspiration biopsy. Sonography of the consolidated lung showed a wedge-shaped hypoechoic lesion con...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.174.3.2406780

    authors: Yang PC,Luh KT,Wu HD,Chang DB,Lee LN,Kuo SH,Yang SP

    更新日期:1990-03-01 00:00:00

  • Management of Uterine Fibroids: A Focus on Uterine-sparing Interventional Techniques.

    abstract::Uterine fibroids occur in approximately 50% of women over the age of 40 years, and an estimated 50% of those are symptomatic. Menorrhagia is the most common symptom and the primary indication for treatment, although bulk symptoms often occur and can be treated. Pharmacotherapy is typically inadequate unless it can be ...

    journal_title:Radiology

    pub_type: 杂志文章,评审

    doi:10.1148/radiol.2016141693

    authors: Silberzweig JE,Powell DK,Matsumoto AH,Spies JB

    更新日期:2016-09-01 00:00:00

  • Postoperative radiation therapy in clinical stage I endometrial cancer: corpus, cervical, and lower uterine segment involvement--patterns of failure.

    abstract:PURPOSE:To evaluate involvement of the lower uterine segment (LUS) in adenocarcinoma of the endometrium and to identify patterns of treatment failure. MATERIALS AND METHODS:Two hundred four patients, aged 29-92 years, with endometrial carcinoma underwent surgery. Postoperative radiation therapy was administered for ad...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.196.2.7617840

    authors: Mayr NA,Wen BC,Benda JA,Sorosky JI,Davis CS,Fuller RW,Hussey DH

    更新日期:1995-08-01 00:00:00

  • Choledocholithiasis: treatment with extracorporeal shock wave lithotripsy.

    abstract::In a patient with choledocholithiasis, a duodenal diverticulum precluded endoscopic retrograde bile duct cannulation. A transhepatic catheter was used to opacify the bile ducts and to guide the endoscopic sphincterotome into the major duodenal papilla. Because limited sphincterotomy did not allow extraction or spontan...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.165.2.3116600

    authors: Becker CD,Fache JS,Gibney RG,Scudamore CH,Burhenne HJ

    更新日期:1987-11-01 00:00:00

  • Aneurysms of the right ventricular outflow tract after tetralogy of Fallot repair: role of radiology.

    abstract::Eight patients with aneurysms of the right ventricular outflow tract patch following tetralogy of Fallot repair were found to have residual distal obstructions. The site of such an obstruction must be carefully documented preoperatively because failure to relieve significant distal obstruction may result in recurrent ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.167.1.3347710

    authors: Ascuitto RJ,Ross-Ascuitto NT,Markowitz RI,Kopf GS,Hellenbrand WE,Fahey JT,Kleinman CS

    更新日期:1988-04-01 00:00:00

  • Electromagnetic heating of breast tumors in interventional radiology: in vitro and in vivo studies in human cadavers and mice.

    abstract:PURPOSE:To assess relevant parameters for the minimally invasive elimination of breast tumors by using a selective application of magnetite and exposure of the breast to an alternating magnetic field. MATERIALS AND METHODS:The specific absorption rate (SAR) of different magnetite samples was determined calorimetricall...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.218.2.r01fe19570

    authors: Hilger I,Andrä W,Hergt R,Hiergeist R,Schubert H,Kaiser WA

    更新日期:2001-02-01 00:00:00

  • Magnetic resonance without nuclear.

    abstract::The American College of Radiology's Commission on Nuclear Magnetic Resonance has recommended adoption of the term "Magnetic Resonance" as a replacement. The author offers background and rationale for this shift in terminology. ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.150.1.6689780

    authors: Meaney TF

    更新日期:1984-01-01 00:00:00

  • Clinical applications of PET in oncology.

    abstract::Positron emission tomography (PET) provides metabolic information that has been documented to be useful in patient care. The properties of positron decay permit accurate imaging of the distribution of positron-emitting radiopharmaceuticals. The wide array of positron-emitting radiopharmaceuticals has been used to char...

    journal_title:Radiology

    pub_type: 杂志文章,评审

    doi:10.1148/radiol.2312021185

    authors: Rohren EM,Turkington TG,Coleman RE

    更新日期:2004-05-01 00:00:00

  • Presurgical evaluation of the motor hand area with functional MR imaging in patients with tumors and dysplastic lesions.

    abstract:PURPOSE:To test an optimized functional magnetic resonance (MR) imaging procedure to depict the motor hand representation area (HRA) in patients with epilepsy lesions near the central sulcus. MATERIALS AND METHODS:Fast low-angle shot MR imaging was performed with an oblique single-section imaging technique in eight co...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.210.2.r99ja31529

    authors: Achten E,Jackson GD,Cameron JA,Abbott DF,Stella DL,Fabinyi GC

    更新日期:1999-02-01 00:00:00

  • Assessment of arterial blood flow measurements by digital angiography.

    abstract::A system for computerized processing of video image series was utilized for the real-time digitization of arteriograms. There were 256 x 256 picture elements (pixels) per image with a resolution of 256 gray levels. Temporal changes in x-ray absorption at each pixel as induced by contrast media were computed for the ex...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.141.1.7291540

    authors: Bürsch JH,Hahne HJ,Brennecke R,Grönemeier D,Heintzen PH

    更新日期:1981-10-01 00:00:00

  • Clear cell chondrosarcoma.

    abstract::The clinical, radiologic, and histopathologic features of three cases of clear cell chondrosarcoma are described. On radiographs, this rather benign-appearing tumor resembles a chondroblastoma when it occurs at the end of a long bone, and may occasionally show a calcified matrix. However, it has distinctive tumor cell...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.154.1.3964950

    authors: Kumar R,David R,Cierney G 3rd

    更新日期:1985-01-01 00:00:00

  • Contrast-enhanced MR imaging performed after successful lumbar disk surgery: prospective study.

    abstract::A prospective study was undertaken to establish the normal spectrum and timing of gadolinium-enhanced magnetic resonance (MR) imaging findings in 15 patients who had resolution of symptoms after successful lumbar disk surgery. Enhancement of the facet joints (in 88% of disk levels) and paraspinal muscles (100%) decrea...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.182.1.1727310

    authors: Boden SD,Davis DO,Dina TS,Parker CP,O'Malley S,Sunner JL,Wiesel SW

    更新日期:1992-01-01 00:00:00

  • Bile cytology. A routine addition to percutaneous biliary drainage.

    abstract::Exfoliative cytology of bile aspirated from percutaneously placed combined external/internal biliary drainage catheters yielded positive results in 34% of 100 cases. There were no false-positive results. Bile cytology is a simple, inexpensive, and useful method which can establish a diagnosis of malignant biliary obst...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.149.3.6647860

    authors: Muro A,Mueller PR,Ferrucci JT Jr,Taft PD

    更新日期:1983-12-01 00:00:00

  • Normal and transplanted rat kidneys: diffusion MR imaging at 7 T.

    abstract:PURPOSE:To investigate the feasibility of obtaining reproducible apparent diffusion coefficient (ADC) maps of normal rat kidneys by using respiratory-triggered spin-echo diffusion-weighted magnetic resonance (MR) imaging, to investigate the sensitivity of ADC maps in the evaluation of renal blood flow, and to use this ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2313021587

    authors: Yang D,Ye Q,Williams DS,Hitchens TK,Ho C

    更新日期:2004-06-01 00:00:00

  • Radiologic distinction of pyogenic pulmonary infection from Pneumocystis carinii pneumonia in AIDS patients.

    abstract::Thirty-four episodes of pyogenic pulmonary infection in 30 patients infected with human immunodeficiency virus (HIV) and 30 episodes of Pneumocystis carinii pneumonia (PCP) in 30 AIDS patients were reviewed to determine if the radiologic features were more helpful than clinical and laboratory findings in the different...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.175.3.2343120

    authors: Amorosa JK,Nahass RG,Nosher JL,Gocke DJ

    更新日期:1990-06-01 00:00:00

  • Multi-detector row CT coronary angiography: influence of reconstruction technique and heart rate on image quality.

    abstract:PURPOSE:To prospectively evaluate to what extent image quality in 16-detector row computed tomographic (CT) coronary angiography is a function of the heart rate and the image reconstruction technique used. MATERIALS AND METHODS:A total of 70 patients (49 men, 21 women; mean age, 59.1 years +/- 5.8 [standard deviation]...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2381041595

    authors: Herzog C,Arning-Erb M,Zangos S,Eichler K,Hammerstingl R,Dogan S,Ackermann H,Vogl TJ

    更新日期:2006-01-01 00:00:00

  • The soleal line: a cause of tibial pseudoperiostitis.

    abstract::An unusually prominent soleal line (a normal anatomic variant) may mimic periosteal reaction along the posterior margin of the proximal tibial shaft. This area of pseudoperiostitis is differentiated from hyperostoses arising from the anterior tibial tubercle and the interosseous membrane. It is always associated with ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/119.1.79

    authors: Levine AH,Pais MJ,Berinson H,Amenta PS

    更新日期:1976-04-01 00:00:00