Abstract:
PURPOSE:The goal of our study was to examine the prevalence of multiple hypodense splenic nodules and their associated diagnoses and to correlate CT appearance with clinical presentation and diagnosis. METHOD:Records of all patients undergoing contrast-enhanced CT from July 1994 through September 1997 were reviewed. Charts and CT scans of patients with multiple (more than five) hypodense splenic nodules were then evaluated. RESULTS:During the search period, there were 8,764 patients examined. Multiple hypodense splenic nodules were identified in 45 patients. Sixteen patients had malignant neoplasia as an etiology, with two patients having a benign tumor. Ten patients had an infectious etiology; nine patients had an inflammatory but noninfectious etiology; in eight patients, a diagnosis was not established; five of these patients were followed for > 18 months. CONCLUSION:Multiple hypodense splenic nodules are uncommon. Lymphoma, infection, and sarcoid were the three most common disorders in the symptomatic patient, with infection strongly correlated with a compromised immune system. In the asymptomatic patient, nonlymphomatous metastatic disease, benign tumor, and sarcoid were most common. Although overlap exists between diagnostic groups, lymphoma tends to have larger, more variable nodules, whereas infection tends to occur with smaller, more uniform nodules. Sarcoid is intermediate in appearance.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Warshauer DM,Molina PL,Worawattanakul Sdoi
10.1097/00004728-199809000-00005subject
Has Abstractpub_date
1998-09-01 00:00:00pages
694-702issue
5eissn
0363-8715issn
1532-3145journal_volume
22pub_type
杂志文章abstract::Although acute appendicitis is the most common disease of the appendix, the appendix can be involved by a wide range of diseases. Diseases other than acute appendicitis may produce signs and symptoms indistinguishable from those of acute appendicitis. Computed tomography (CT) can provide important information for diag...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/00004728-200305000-00001
更新日期:2003-05-01 00:00:00
abstract::Aeration of the middle turbinate, termed "concha bullosa," is a common anatomical variant of intranasal anatomy. Of 320 patients evaluated for sinus disease with coronal CT, 34% had concha bullosa on at least one side. The overall incidence of inflammatory disease in the ostiomeatal complex in these symptomatic patien...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198809010-00012
更新日期:1988-09-01 00:00:00
abstract::We describe the effect of the off-center position, the bowtie filter type, and the direction of scan projection radiograph on the radiation dose and image noise of 64-detector computed tomographic scans using the automatic tube current modulation technique. On anteroposterior scan projection radiographs, the tube curr...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31819d6f6f
更新日期:2009-11-01 00:00:00
abstract::A 31-year-old woman with an aneurysmal bone cyst of the L1 vertebral body proved by biopsy and studied by plain lumbar spine roentgenography, radionuclide studies, myelography, and CT is presented. The unusual location of involvement of the vertebral body alone and the difficulty in differential diagnosis between aneu...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198412000-00031
更新日期:1984-12-01 00:00:00
abstract::Nineteen cases of proven hepatic alveolar echinococcosis were examined by magnetic resonance (MR) and the results were compared with CT. Fibrous and parasitic tissue showed low signal both on T1- and, generally, on T2-weighted images. In a few cases a high signal on T2-weighted images may be observed, due either to ce...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199007000-00018
更新日期:1990-07-01 00:00:00
abstract:OBJECTIVE:This cross-sectional study assessed the prognostic implications of computed tomography (CT) coronary artery calcification (CAC), independent of emphysema, in patients with chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS:Coronary artery calcification and emphysema were assessed on noncontr...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000119
更新日期:2014-09-01 00:00:00
abstract:OBJECTIVE:To compare the 2-dimensional time of flight, the 3-dimensional time-resolved contrast-enhanced magnetic resonance (MR) angiography, and the 3-dimensional 3-station bolus chase contrast-enhanced MR angiography in assessing distal station atherosclerosis. METHODS:Two-dimensional time of flight, 3-dimensional t...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000235073.72926.4d
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study is to evaluate predictive factors for discriminating benign from malignant intraductal mucin-producing neoplasm (IPMN) of the pancreas on multidetector row computed tomography (MDCT). MATERIALS AND METHODS:Fifty-three patients with IPMN underwent MDCT, and the imaging and pathologic...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3180676d97
更新日期:2008-03-01 00:00:00
abstract::Pick's disease is a rare cause of dementia. It often shows a characteristic pattern of atrophy affecting primarily the anterior portions of the frontal and temporal lobes. This pattern, as shown by computed tomography, may suggest the diagnosis. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-197902000-00021
更新日期:1979-02-01 00:00:00
abstract:OBJECTIVE:To know the CT changes that may be seen in the mediastinum after uncomplicated mediastinoscopy. MATERIALS AND METHODS:Noncontrast CT was performed on 10 patients on the 1st, 3rd, and 5th days after the procedure. RESULTS:We encountered linear and diffuse increased attenuation within the mediastinum as well ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199407000-00011
更新日期:1994-07-01 00:00:00
abstract::The CT findings in 20 patients with pulmonary hydatid disease were reviewed. Sixty-four intrapulmonary cysts were imaged, 22% of which were ruptured or complicated. Simple hydatid cysts and water-density lung cysts of other etiology may have a similar CT appearance; however, the demonstration of the cystic nature of a...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198603000-00011
更新日期:1986-03-01 00:00:00
abstract::A whole-body, multislice positron emission tomograph, Positologica III, has been constructed based on a sampling method "positology." The scanner consists of four continuously rotating detector rings with 192 bismuth germanate (BGO) crystals (12 X 24 X 24 mm) arranged at irregular intervals along each ring, providing ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198509000-00018
更新日期:1985-09-01 00:00:00
abstract::Mucinous cystadenocarcinoma (MCA) is a rare tumor that is considered to be a cystic variant of mucin-producing lung adenocarcinoma. MCA expands grossly by storing mucus and contains few neoplastic cells. We present the CT images of three patients with MCA and correlate them with pathologic specimens. The CT findings o...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199907000-00028
更新日期:1999-07-01 00:00:00
abstract::Cranial computed tomography (CT) scans were analyzed in five patients with autopsy documented intracranial aspergillosis. All infections occurred in immunocompromised hosts. Our findings included subtle low attenuation abnormalities, minimal mass effect, and poor contrast enhancement without ring configuration, in the...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198110000-00007
更新日期:1981-10-01 00:00:00
abstract::The incidence of melanoma has risen dramatically over the past several decades. Oncologists rely on the ability of radiologists to identify subtle radiographic changes representing metastatic and recurrent melanoma in uncommon locations on multidetector computed tomography (MDCT) as the front-line imaging surveillance...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/RCT.0000000000000697
更新日期:2018-05-01 00:00:00
abstract::A case of an unusually large cystic renal cell carcinoma demonstrated on plain film, CT, and magnetic resonance (MR) is presented. Though the origin of huge abdominal tumors can be difficult to determine, the CT and MR findings were able to correctly diagnose the mass as a malignant cystic kidney tumor. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198911000-00026
更新日期:1989-11-01 00:00:00
abstract::Proton MR spectroscopy of the brain has been undertaken in 8 healthy volunteers and in 11 patients with human immunodeficiency virus infection and varying stages of AIDS dementia complex (ADC). Spectral appearances in patients with no ADC or early ADC were not significantly different from normal volunteers. Spectra fr...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199207000-00007
更新日期:1992-07-01 00:00:00
abstract::Segmentation of vertebral bones in computed tomographic data is important as a first stage of image-based radiological tasks. However, it is a challenging problem to segment an affected spine correctly. In this study, we propose a new method of segmentation of thoracic and lumbar vertebral bodies from thin-slice compu...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3181b12242
更新日期:2010-01-01 00:00:00
abstract::The effect of cardiac gating (CG) on the diagnostic quality of magnetic resonance images of the hilum and mediastinum was evaluated by comparing gated with nongated scans in 20 patients. The advantages of CG varied depending on the regions and structures under study and the presence and extent of disease. In general, ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198511000-00013
更新日期:1985-11-01 00:00:00
abstract::The utility of gadolinium-enhanced ultrafast MR imaging in the diagnosis of focal nodular hyperplasia (FNH) of the liver was assessed in one patient. Contrast-enhanced serial snapshot-FLASH with a frequency of 30 images/min demonstrated the typical hemodynamic appearance of FNH known from CT studies. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1991-09-01 00:00:00
abstract:OBJECTIVE:The goal of this study was twofold: first, to quantify the influence of magnetic field strength (B0) on T2* and T2susceptibility relaxation rates in vertebral bone marrow; and second, to determine the significance of in-phase/out-of-phase phenomena in GE MRI as a function of TEs at different B0 values. MATER...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199505000-00023
更新日期:1995-05-01 00:00:00
abstract:PURPOSE:High resolution MR images obtained from a normal human volunteer at 8 T are utilized to describe the appearance of iron-containing deep gray nuclei at this field strength. METHOD:High resolution (1,024 x 1,024 matrix) near-axial gradient echo images of the deep gray nuclei were acquired on a human volunteer by...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199911000-00009
更新日期:1999-11-01 00:00:00
abstract::Recurrent respiratory papillomatosis is a chronic disease of children and young adults associated with various complications, one of which is malignant change. We report CT findings of malignant change in a case of recurrent respiratory papillomatosis. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199509000-00020
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the image quality and radiation dose of computed tomography (CT) coronary angiography using a 256-row detector CT scanner in a single cardiac cycle in patients with atrial fibrillation (AF). METHODS:Seventy consecutive patients (41 men and 29 women; age range was fro...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000683
更新日期:2018-03-01 00:00:00
abstract::Gas formation as a result of transcatheter tumor embolization has recently been observed by conventional radiography. We report the computed tomography identification of similar benign gas formation following transcatheter embolization of a large adrenal carcinoma. Computed tomography should be the most sensitive meth...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1979-12-01 00:00:00
abstract:OBJECTIVE:To determine the frequency and computed tomography (CT) characteristics of ovarian cysts in women of different ages. METHODS:Five hundred ninety-five contrast-enhanced CT studies performed in 430 females aged 10 or older between January 2001 and December 2006 were retrospectively reviewed. For each study, we...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3181d658a5
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:To evaluate soft tissue contrast and image quality of a respiratory-triggered echo-planar imaging based diffusion-weighted sequence (EPI-DWI) with different b values for magnetic resonance imaging (MRI) of the liver. METHODS:Forty patients were examined. Quantitative and qualitative evaluation of contrast wa...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3180dc930c
更新日期:2008-05-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:We delivered the saline chaser via a spiral flow-generating tube or a conventional connecting tube and compared arterial enhancement at computed tomography angiography (CTA) of the lower extremities. MATERIALS AND METHODS:We randomly assigned 100 patients whose ankle bronchial pressure index o...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,随机对照试验
doi:10.1097/RCT.0000000000000292
更新日期:2015-11-01 00:00:00
abstract::Magnetization transfer (MT) between protons of macromolecules and protons of water molecules is a recently introduced mechanism for tissue contrast in MR imaging. The MT effect is strong in tissues where there is an efficient cross relaxation between macromolecular protons and water protons and where this interaction ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199201000-00004
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:The Mount Fuji sign (MFS) is a radiological sign on computed tomographic scans depicting air between the frontal lobes. Air in this location indicates tension pneumocephalus (TP), considered a neurosurgical emergency.We evaluate the correlation between the MFS and perioperative mortality attributed to TP in ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000897
更新日期:2019-09-01 00:00:00