Abstract:
PURPOSE:To retrospectively evaluate the accuracy of magnetic resonance (MR) imaging in depicting posterior cul-de-sac obliteration in patients with endometriosis. MATERIALS AND METHODS:Institutional review board approval was not required for this retrospective study, but informed consent was obtained from all patients. MR images obtained between January 1989 and December 2000 in 57 women (mean age, 39 years; age range, 26-52 years) with histologically confirmed endometriosis were retrospectively evaluated by four radiologists independently. All patients underwent laparotomy or laparoscopy less than 1 month after MR imaging. MR images were evaluated for the presence and location of endometrial implants and adhesions. MR images were also scored for the presence of five findings: retroflexed uterus, elevated posterior vaginal fornix, intestinal tethering or tethered appearance of rectum in direction of uterus, faint strands between uterus and intestine, and fibrotic plaque or nodule covering serosal surface of the uterus. Interobserver agreement for each of the five findings and for the overall diagnosis of cul-de-sac obliteration was calculated. Sensitivity, specificity, accuracy, positive and negative predictive values, and kappa statistics were determined. RESULTS:Laparotomy or laparoscopy revealed posterior cul-de-sac obliteration in 30 patients. Overall, the four radiologists had mean accuracies of 89.0% and 76.3% for diagnosing endometrial implants and adhesions, respectively, at MR imaging. Overall, the radiologists achieved mean sensitivity, specificity, accuracy, and positive and negative predictive values of 68.4%, 76.0%, 71.9%, 76.6%, and 68.5%, respectively, in diagnosing posterior cul-de-sac obliteration. The best accuracy (mean value, 64.5%) was obtained with the finding of fibrotic plaque in the uterine serosal surface. Readers agreed on the observations 63.2%-91.2% of the time. For the impression of the presence or absence of posterior cul-de-sac obliteration, interobserver agreement varied between substantial and moderate: Mean interobserver agreement was 78.4% (range, 70.2%-84.2%), and mean kappa was 0.57 (range, 0.40-0.67). Mean accuracy of MR imaging for diagnosing posterior cul-de-sac obliteration was 71.9%. CONCLUSION:These results suggest that use of the described MR imaging findings may enable diagnosis of posterior cul-de-sac obliteration.
journal_name
Radiologyjournal_title
Radiologyauthors
Kataoka ML,Togashi K,Yamaoka T,Koyama T,Ueda H,Kobayashi H,Rahman M,Higuchi T,Fujii Sdoi
10.1148/radiol.2343031366subject
Has Abstractpub_date
2005-03-01 00:00:00pages
815-23issue
3eissn
0033-8419issn
1527-1315pii
2343031366journal_volume
234pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::To assess the relationship of coronary artery calcification to angiographically detectable disease, the authors evaluated 100 patients less than 60 years of age who underwent clinically indicated coronary angiography and ultrafast computed tomography (CT). The ultrafast CT technique consisted of 3-mm-thick contiguous ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.185.2.1410350
更新日期:1992-11-01 00:00:00
abstract:PURPOSE:To prospectively determine the accuracy of combination positron emission tomography-computed tomography (PET/CT) in lymph node staging in patients with early-stage cervical cancer, with histopathologic results as the reference standard. MATERIALS AND METHODS:The study was institutional review board approved, a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2381041799
更新日期:2006-01-01 00:00:00
abstract:PURPOSE:To evaluate the long-term effectiveness of the percutaneous treatment of portal venous stenoses in children and adolescents with reduced-size hepatic transplants. MATERIALS AND METHODS:During the past 5 years, percutaneous transhepatic balloon venoplasty was attempted in 25 children and adolescents with anasto...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.215.1.r00ap38147
更新日期:2000-04-01 00:00:00
abstract::Background Mammography screening reduces breast cancer mortality, but a proportion of breast cancers are missed and are detected at later stages or develop during between-screening intervals. Purpose To develop a risk model based on negative mammograms that identifies women likely to be diagnosed with breast cancer be...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2020201620
更新日期:2020-11-01 00:00:00
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
更新日期:1989-07-01 00:00:00
abstract:PURPOSE:To describe and evaluate a method of tomosynthesis breast imaging with a full-field digital mammographic system. MATERIALS AND METHODS:In this tomosynthesis method, low-radiation-dose images were acquired as the x-ray source was moved in an arc above the stationary breast and digital detector. A step-and-expos...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.205.2.9356620
更新日期:1997-11-01 00:00:00
abstract:PURPOSE:To compare the stress experienced by women who had false-positive screening mammograms and had undergone immediate on-site diagnostic imaging evaluation with that experienced by those who had been recalled for subsequent imaging. MATERIALS AND METHODS:A retrospective survey was mailed to women with false-posit...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.218.1.r01ja35247
更新日期:2001-01-01 00:00:00
abstract:PURPOSE:To prospectively determine the magnetic resonance (MR) signal intensity characteristics of structures of the ampullary region and to assess the potential use of MR imaging in evaluation of the extent of periampullary tumors in resected specimens. MATERIALS AND METHODS:Twenty-five specimens from the ampullary r...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2313030797
更新日期:2004-06-01 00:00:00
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 sequ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.13121838
更新日期:2013-07-01 00:00:00
abstract::Seven patients who had spinal interspace infections underwent clinical, laboratory, and radiographic examinations, and findings are reported. Lytic fragmentation of adjacent vertebral bodies is a characteristic appearance on CT scans. Sagittal-coronal reformations confirm the end-plate irregularity and establish the d...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.149.3.6647850
更新日期:1983-12-01 00:00:00
abstract::High fecal impaction resulted in complete bowel obstruction in 2 children following renal transplantation and in one adult on chemotherapy and narcotics. The usual methods of relief failed, and water-soluble contrast enemas with a high osmolality were employed. Fluoroscopic control assured placement of the enema fluid...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/115.1.9
更新日期:1975-04-01 00:00:00
abstract::Gastric polyps were found in 38 patients in a series of 2,420 consecutive double-contrast studies of the upper gastrointestinal tract. The resulting incidence of 1.6% is four times the highest figure previously reported. Single polyps were usually located in the antrum, multiple polyps in the body of fundus. Two-third...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.134.1.7350630
更新日期:1980-01-01 00:00:00
abstract::Cystic hepatoblastomas share ultrasonographic characteristics with simple hepatic cysts; however, a distinction can be made by the demonstration of internal septations. The differentiation is important because cystic hepatoblastoma may have malignant potential. The ultrasonographic and scintigraphic findings in five c...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.138.1.6256810
更新日期:1981-01-01 00:00:00
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
更新日期:1981-10-01 00:00:00
abstract::Absolute speeds (mR-1) of screen-film systems were determined accurately and precisely from ten independent measurements over a six month period at several beam qualities that included both scatter and scatter-free conditions. The absorbed x-ray energies in the screens that yielded a net film density of 1.0 were obtai...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.151.1.6701320
更新日期:1984-04-01 00:00:00
abstract::Enlarged gastroesophageal veins were successfully obliterated in 41 patients using embolization with modified autogenous clots and/or Gelfoam, balloon occlusion, iatrogenic perivenous hematoma, sclerosing agents (Sotradecol and Keflin), or a combination of these methods. Thirteen patients were actively bleeding when s...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/124.2.313
更新日期:1977-08-01 00:00:00
abstract::A technique to perform a liver biopsy through the femoral vein with the Mansfield biopsy forceps is described. Nine liver biopsy procedures were performed in seven patients who were considered at high risk of bleeding, precluding a conventional transperitoneal biopsy. The technique is an easy, safe, and well-tolerated...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.169.3.3187010
更新日期:1988-12-01 00:00:00
abstract::Computed tomograms, angiograms, and operative findings in 18 intra-atrial and 6 para-atrial lateral ventricle tumors were reviewed. Intra-atrial tumors were characteristically homogeneous, with an intraluminal mass effect. The benign types engulfed the choroid glomus; on angiography, the choroidal arteries were enlarg...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.145.1.7122900
更新日期:1982-10-01 00:00:00
abstract::Twenty-one patients with prostate cancer underwent intermittent arterial infusion chemotherapy with an implanted reservoir and alteration of the intrapelvic blood flow. One internal iliac artery was embolized with steel coils so that the drugs would perfuse throughout the tumor through a single tube. Angiography perfo...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.185.3.1438780
更新日期:1992-12-01 00:00:00
abstract::A simple technique used to catheterize boys for voiding cystourethrography, using a feeding catheter while the urethra is distended by a saline solution is described. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.135.2.7367650
更新日期:1980-05-01 00:00:00
abstract::There is an increasing opportunity to perform multifunctional imaging at a variety of organ sites with relatively short examination times. Each technique yields quantitative parameters that reflect specific aspects of the underlying tumor or tissue biology. Many biomarkers have emerged that provide unique information ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.10091760
更新日期:2010-08-01 00:00:00
abstract::Radiographs, computed tomograms, and radionuclide bone scans were obtained preoperatively in three children with fibromatosis involving the bones and soft tissues of the extremities. Two of the children had identical scar-like bone lesions of the proximal tibia, which, to the authors' knowledge, have not been reported...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.152.3.6463250
更新日期:1984-09-01 00:00:00
abstract::During the past century, imaging of the pregnant patient has been performed with radiography, scintigraphy, computed tomography, magnetic resonance imaging, and ultrasonography (US). US imaging has emerged as the primary imaging modality, because it provides real-time images at relatively low cost without the use of i...
journal_title:Radiology
pub_type: 历史文章,杂志文章,评审
doi:10.1148/radiol.14140238
更新日期:2014-11-01 00:00:00
abstract:PURPOSE:To retrospectively evaluate the prevalence of neonatal intracranial hemorrhage (ICH) and its relationship to obstetric and neonatal risk factors. MATERIALS AND METHODS:Pregnant women were recruited for a prospective study of neonatal brain development; the study was approved by the institutional review board a...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2422060133
更新日期:2007-02-01 00:00:00
abstract:PURPOSE:To evaluate the potential of xenon ventilation computed tomography (CT) in the quantitative and visual analysis of chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS:This study was approved by the institutional review board. After informed consent was obtained, 32 patients with COPD underwent ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.10091502
更新日期:2010-09-01 00:00:00
abstract::Despite the widespread use of interventional radiologic techniques, there has been reluctance to apply these to the spleen. Concern for bleeding and difficulty in negotiating around the colon and pleura have limited its use. The authors report their experience with interventional radiology of the spleen in 35 cases, i...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.161.2.3763890
更新日期:1986-11-01 00:00:00
abstract:PURPOSE:To determine whether an expression vector that encodes for human tyrosinase, the key enzyme in the melanin production pathway, can be used to image gene expression with magnetic resonance (MR) imaging and scintigraphy. MATERIALS AND METHODS:Mouse fibroblasts and human embryonal kidney cells were transfected wi...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.204.2.9240530
更新日期:1997-08-01 00:00:00
abstract::Previous reports of angiomyolipoma have emphasized the ultrasonic finding of a very echogenic intrarenal mass. Ten cases of angiomyolipoma for which ultrasound examinations were available were retrospectively reviewed and correlated with their pathologic findings, and, when available, with computed tomographic finding...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.139.2.7220890
更新日期:1981-05-01 00:00:00
abstract::Background Among breast cancer survivors, detecting a breast cancer when it is asymptomatic (rather than symptomatic) improves survival; thus, imaging surveillance in these patients is warranted. Digital breast tomosynthesis (DBT) is used for screening, but data on DBT for surveillance in this high-risk population are...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2020201854
更新日期:2021-02-01 00:00:00
abstract::The authors investigated the contrast enhancement characteristics of the coronary artery stent lumen to assess patency and then evaluated the accuracy of computed tomographic (CT) measurement of the in-stent luminal diameter. Nineteen patients (16 men and three women; mean age, 58.7 years) with 26 stents underwent car...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2331031564
更新日期:2004-10-01 00:00:00