Abstract:
PURPOSE:To compare the diagnostic yield of abdominal radiography with that of computed tomography (CT) in adult patients presenting to the emergency department with nontraumatic abdominal pain. MATERIALS AND METHODS:Records of 1,000 consecutive patients presenting to the emergency department with acute abdominal pain from April to June 1998 were retrospectively reviewed. A total of 871 patients underwent abdominal radiography, and 188 underwent abdominal CT. The report interpretations of the abdominal radiographs and CT scans were divided into normal, nonspecific, and abnormal categories. Final discharge diagnoses were compared with the interpretations of the imaging examination results, and sensitivities and specificities of each modality were calculated and compared. RESULTS:Interpretation of abdominal radiographs was nonspecific in 588 (68%) of 871 patients, normal in 200 (23%), and abnormal in 83 (10%). The highest sensitivity of abdominal radiography was 90% for intraabdominal foreign body and 49% for bowel obstruction. Abdominal radiography had 0% sensitivity for appendicitis, pyelonephritis, pancreatitis, and diverticulitis. Sensitivities of abdominal CT were highest for bowel obstruction and urolithiasis at 75% and 68%, respectively. CONCLUSION:Abdominal radiographs are not sensitive in the evaluation of adult patients presenting to the emergency department with nontraumatic abdominal pain.
journal_name
Radiologyjournal_title
Radiologyauthors
Ahn SH,Mayo-Smith WW,Murphy BL,Reinert SE,Cronan JJdoi
10.1148/radiol.2251011282subject
Has Abstractpub_date
2002-10-01 00:00:00pages
159-64issue
1eissn
0033-8419issn
1527-1315journal_volume
225pub_type
杂志文章相关文献
RADIOLOGY文献大全abstract::Sensitivity and specificity of first screen mammography in a randomized screening trial at five centers are reported. A total of 23,101 women underwent mammography; in 139, breast cancer was detected at first screening; in 20, less than 12 months after first screening; and in 47, at second screening. All 206 cancer ca...
journal_title:Radiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1148/radiology.160.2.3523590
更新日期:1986-08-01 00:00:00
abstract::The computed tomographic (CT) chest scans of 11 patients who developed respiratory or constitutional symptoms while receiving amiodarone therapy were reviewed. CT findings indicative of significant amiodarone exposure included (a) high-attenuation parenchymal-pleural lesions in eight of the 11 patients (73%), and (b) ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.177.1.2399310
更新日期:1990-10-01 00:00:00
abstract::The extraperitoneal space around the urinary bladder is lamellate, just like the retroperitoneal space around the kidneys. The bladder, urachus, and obliterated umbilical arteries lie within the perivesical space, surrounded by umbilicovesical fascia, analogous to the perinephric space within the renal fascia. A much ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.159.2.2938210
更新日期:1986-05-01 00:00:00
abstract::Clinical, angiographic, scintigraphic and pathologic observations in myocardial contusion were correlated. Radionuclide imaging of the injured heart with 99mTc-Sn-polyphosphate provides an accurate diagnosis in acute, even mild, myocardial contusion. The study can be carried out without danger to the critically ill pa...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/116.3.679
更新日期:1975-09-01 00:00:00
abstract::To determine and quantify the major sources of anxiety for patients undergoing magnetic resonance (MR) imaging and to suggest means by which to eliminate or diminish their negative effects, the authors studied anxiety in 46 subjects. Of these, 20 randomly selected subjects who successfully completed the examination pa...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.170.2.2911670
更新日期:1989-02-01 00:00:00
abstract::Renal dynamic computed tomographic (CT) data for 16 patients with unilateral renal artery stenosis were compared with those for 12 control subjects. Three patterns of perfusion were distinguished in stenotic kidneys: pattern A, symmetric time-attenuation curves; pattern B, asymmetric time-attenuation curve with simila...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2211001558
更新日期:2001-10-01 00:00:00
abstract::The authors reviewed the accuracy of stereotaxic fine-needle aspiration cytology in prediction of the presence of cancer. Seventy-four nonpalpable breast cancers and 144 benign lesions were studied. The rate of obtaining an inadequate sample was 8.1% for cancers and 20.8% for benign lesions. None of the cytology repor...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.173.1.2675190
更新日期:1989-10-01 00:00:00
abstract:PURPOSE:To investigate in vivo the feasibility of using magnetic resonance (MR) imaging-derived temperature and thermal dose measurements to find the threshold of thermal tissue damage. MATERIALS AND METHODS:Sonications were delivered in rabbit thigh muscles at varying powers. Temperature-sensitive MR images obtained ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.216.2.r00au42517
更新日期:2000-08-01 00:00:00
abstract:PURPOSE:To investigate the feasibility of breast tissue characterization in terms of water, lipid, and protein contents with a spectral computed tomographic (CT) system based on a cadmium zinc telluride (CZT) photon-counting detector by using postmortem breasts. MATERIALS AND METHODS:Nineteen pairs of postmortem breas...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.14132732
更新日期:2014-09-01 00:00:00
abstract::Radiographs of 38 children with Down syndrome (aged 2-3 years) were retrospectively evaluated for hypoplasia of the posterior arch of the C-1 vertebra. The anteroposterior dimensions of the posterior arch of C-1 were measured and compared with those of an age- and sex-matched control group. The posterior arches of C-2...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.183.1.1532260
更新日期:1992-04-01 00:00:00
abstract::Background Improving the differentiation of uterine sarcomas from atypical leiomyomas remains a clinical challenge and is needed to avoid inappropriate surgery. Purpose To develop a diagnostic algorithm including diffusion-weighted MRI criteria to differentiate malignant uterine sarcomas from benign atypical leiomyoma...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2020191658
更新日期:2020-11-01 00:00:00
abstract::Computed tomographic metrizamide myelography (CTMM) was performed on 25 infants and children and 2 adults with normal spinal cords. Both the cord and the cauda equina were precisely outlined. The most detailed information was obtained with a small window setting, with the image subsequently magnified and color-reverse...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/130.3.691
更新日期:1979-03-01 00:00:00
abstract::In three patients with histologically proved cavernous hemangiomas of the spinal cord, magnetic resonance (MR) imaging was superior to myelography, delayed computed tomography (CT) myelography, and contrast-enhanced CT in depicting the lesion. The presence of mixed subacute and chronic hemorrhage, suggested by mixed h...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.166.3.3340780
更新日期:1988-03-01 00:00:00
abstract::Purpose To quantify myocardial extracellular volume (ECV) by using cardiac magnetic resonance (MR) imaging in thalassemia major and to investigate the relationship between ECV and myocardial iron overload. Materials and Methods With institutional review board approval and informed consent, 30 patients with thalassemia...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2015150341
更新日期:2016-06-01 00:00:00
abstract::Lymphangiomas are rare, benign tumors which may become opacified during lymphography and may be confused with malignant lymph node disease. A case is reported in which lymphography showed focal collections of contrast material retained for several days in dilated lymphatic spaces which initially simulated metastatic d...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/115.2.355
更新日期:1975-05-01 00:00:00
abstract::Purpose To measure the levels of gadolinium present in the rat brain 1 and 20 weeks after dosing with contrast agent and to determine if there are any histopathologic sequelae. Materials and Methods The study was approved by the GE Global Research Center Institutional Animal Care and Use Committee. Absolute gadolinium...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2016160905
更新日期:2017-03-01 00:00:00
abstract::One hundred patients whose standard endoscopic retrograde cholangiographic studies gave poor visualization of the biliary tract were investigated using a balloon catheter introduced into the common bile duct by duodenoscopy to block contrast material leakage. Full diagnostic visualization was obtained in 90 patients, ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.159.1.3952330
更新日期:1986-04-01 00:00:00
abstract::Twenty-nine patients with known or suspected malignancy were studied with identical T1-weighted (spin echo [SE] and inversion recovery [IR]) and T2-weighted SE magnetic resonance (MR) imaging at 0.5 and 1.5 T to evaluate the relative sensitivities of these sequences for detecting focal hepatic lesions. At 0.5 T, 98 le...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.174.1.2152980
更新日期:1990-01-01 00:00:00
abstract::The normal anatomy of the larynx and base of the tongue as seen on nuclear magnetic resonance (NMR) images was studied. Scans of normal volunteers were obtained using a 3.5 kilogauss (0.35 T) superconductive magnet and a 3.0 kilogauss (0.3 T) permanent magnet. The NMR images were compared with images obtained by CT an...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.148.1.6856830
更新日期:1983-07-01 00:00:00
abstract::Metabolic syndrome has become an important public health problem and has reached epidemic proportions globally. Metabolic syndrome is characterized by a cluster of metabolic abnormalities in an individual, with insulin resistance as the main characteristic. The major adverse consequence of metabolic syndrome is cardio...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiol.12110772
更新日期:2012-07-01 00:00:00
abstract:PURPOSE:A prospective study was performed to compare results of computed tomography (CT) and fiberoptic bronchoscopy in diagnosis of cancer in patients with hemoptysis. MATERIALS AND METHODS:Ninety-one patients (64 men, 27 women) with hemoptysis underwent thin-section CT and fiberoptic bronchoscopy. RESULTS:CT scans ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.189.3.8234690
更新日期:1993-12-01 00:00:00
abstract::Five cases, four histologically proved, or hamartoma of the tuber cinereum and hypothalamus in children (age range: 2--12 years) are reported. Three cases had pubertas praecox, and in all of these the hamartoma was located in the basal cistern between the chiasm and pons, and had a collar button shape and size typical...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/127.3.697
更新日期:1978-06-01 00:00:00
abstract::Background Available methods to quantify regional dynamic thoracic function in thoracic insufficiency syndrome (TIS) are limited. Purpose To evaluate the use of quantitative dynamic MRI to depict changes in regional dynamic thoracic function before and after surgical correction of TIS. Materials and Methods Images fro...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiol.2019181731
更新日期:2019-07-01 00:00:00
abstract::Computed tomography (CT) resulted in a diagnostic accuracy of 89.2% and 96.1% for medial and lateral meniscal lesions, respectively, in 109 patients who underwent surgery after a direct CT study of the knee joint for a clinically suspected meniscal lesion. The meniscal lesions were the only pathologic condition found ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.157.1.3839930
更新日期:1985-10-01 00:00:00
abstract::Desferal was labeled with 111In and its distribution was studied in normal mice, rabbits bearing turpentine-induced abscesses, and rats bearing Staphylococcus aureus-induced abscesses. The results indicate that 111In Desferal may be used in abscess detection and localization. ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/128.3.697
更新日期:1978-09-01 00:00:00
abstract::Serial pulmonary imaging has proved to be effective in the evaluation of patients undergoing total joint arthroplasty. A clinical dilemma arises in asymptomatic patients whose postoperative pulmonary images differ from the preoperative images. The authors prospectively evaluated 403 patients with serial imaging to det...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.172.2.2748830
更新日期:1989-08-01 00:00:00
abstract::The authors present 3 cases of surgically proved Klatskin tumor diagnosed by ultrasound alone. Sonographic features of these tumors include (a) dilatation of the intrahepatic biliary ducts but not the extrahepatic duct, (b) non-union of the right and left hepatic ducts, and (c) small, solid masses at the hepatic hilus...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.148.3.6308710
更新日期:1983-09-01 00:00:00
abstract::Fine needle, percutaneous aspiration of suspect lymph nodes was carried out in 29 patients during fluoroscopy. The correct positioning of the needle was assured if the node moved with the tip of the needle. In 29 patients, there were 65 successful aspirations and 29 failures. Anesthesia is recommended but care should ...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/120.1.205
更新日期:1976-07-01 00:00:00
abstract::Computed tomographic (CT) colonography is a new-generation technique for detecting colorectal neoplasms by using volumetric CT data combined with specialized imaging software. Patient examinations require full colonic preparation, insufflation, and data acquisition with the patient in the supine and prone positions. C...
journal_title:Radiology
pub_type: 杂志文章,评审
doi:10.1148/radiology.216.2.r00au47331
更新日期:2000-08-01 00:00:00
abstract::A case of a postcholecystectomy patient is presented in which an initially grossly dilated common hepatic duct returned to normal size within several minutes. We have tried to explain this phenomenon using known facts abut bile duct elasticity and bile flow, and conclude that such rapid size change probably only occur...
journal_title:Radiology
pub_type: 杂志文章
doi:10.1148/radiology.140.1.7244220
更新日期:1981-07-01 00:00:00