Abstract:
OBJECTIVE:The aim of the present study was to assess the value of dual-head gamma-camera (DHGC) imaging in the coincidence mode using 2-[18F]-fluoro-2-deoxy-D-glucose in differentiating recurrent tumor from posttreatment changes in previously treated head and neck cancer. METHODS:This was a single-center prospective study performed with the approval of our Institutional Review Board. Twenty-nine patients with suspected recurrent head and neck cancers were prospectively enrolled in this study. Dual-head gamma-camera imaging in the coincidence mode followed computed tomography (CT; n = 24)/magnetic resonance imaging (MRI; n = 5) within a period of 1 week (mean = 3.5 days) in all patients. Thirteen patients had definite pathologic confirmation of recurrence by undergoing a biopsy. Sixteen patients, however, did not have a definite pathologic confirmation and were followed clinically. The mean duration of follow-up for the subgroup of patients who were followed clinically was 22.8 months (range: 4-48 months). Sensitivity, specificity, accuracy, positive predictive value (PPV), and negative predictive value (NPV) for CT/MRI and DHGC imaging in the coincidence mode were calculated. RESULTS:The sensitivity, specificity, PPV, NPV, and accuracy of CT/MRI in the detection of recurrent cancer were 76.5%, 58.3%, 72.2%, 63.6%, and 69%, respectively. In contrast, the sensitivity (100%), NPV (100%), and accuracy (82.8%) of DHGC imaging in the coincidence mode were superior to that of CT/MRI. Dual-head gamma-camera imaging in the coincidence mode had a specificity (58.3%) and PPV (77.3%) comparable to those of CT/MRI. CONCLUSION:Our data suggest that modified positron emission tomography with DHGC imaging in the coincidence mode is a useful tool in the assessment of recurrent head and neck cancer.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Gandhi D,Falen S,McCartney W,Shockley W,Weissler M,Wrenn S,Shah G,Mukherji SKdoi
10.1097/01.rct.0000164673.41885.4dkeywords:
subject
Has Abstractpub_date
2005-07-01 00:00:00pages
513-9issue
4eissn
0363-8715issn
1532-3145pii
00004728-200507000-00016journal_volume
29pub_type
临床试验,杂志文章abstract::Calcifications of renal masses are common. They are usually dense, partial, small, punctate, and linear opacities. Diffuse calcification is an extremely rare feature of renal masses. Generally, calcified renal cell carcinomas are hypovascular, with calcifications in the interstitium, and they also contain fibrotic cap...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract:PURPOSE:The aim of this study was to describe the MR findings in extraspinal musculoskeletal tuberculosis (EMT). METHOD:A retrospective review was conducted of the MR findings of 18 patients with microbiologically and/or pathologically proven EMT. All MR studies were performed using T1-and T2-weighted spin echo sequen...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200103000-00004
更新日期:2001-03-01 00:00:00
abstract::The purpose of this report is to describe a further distinctive cause of crazy-paving pattern on thin-section computed tomography in a patient affected by pulmonary granulomatous mycosis fungoides. It was possible to reconcile the crazy-paving appearance on thin-section computed tomography scan with the histopathologi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000214269.72180.64
更新日期:2006-09-01 00:00:00
abstract::Hepatocellular carcinoma and cholangiocarcinoma are the most common primary liver malignancies in adults (comprising >85%); however, liver is also host to some unusual primary malignant tumors. Some of these tumors show distinct demographic, clinicopathologic, and imaging features. Imaging features of these uncommon p...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/RCT.0000000000000382
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to investigate whether the criterion "maximum depth of intraluminal appendiceal fluid greater than 2.6 mm" ("DEPTH >2.6 mm"), with the use of 64-detector row computed tomography, is useful to diagnose appendicitis. METHODS:We retrospectively evaluated 0.68-mm-thick images of 2...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3182324443
更新日期:2011-11-01 00:00:00
abstract::Tiazofurin is an experimental chemotherapeutic agent currently undergoing clinical evaluation. We report our results with magnetic resonance (MR) in demonstrating reversible cerebral abnormalities concurrent with the use of this drug. The abnormalities on MR were correlated with findings on CT as well as with cerebral...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198811000-00037
更新日期:1988-11-01 00:00:00
abstract::The presence of superior mesenteric artery aneurysms may be suspected on the basis of clinical and ultrasound findings. These lesions have a suggestive appearance on computed tomography, but for a preoperative assessment angiography is always indicated. Two cases are presented. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198010000-00009
更新日期:1980-10-01 00:00:00
abstract:OBJECTIVE:To compare the quality of multidetector-row computed tomographic angiography in patients with and without aortic aneurysms by 3 different amounts of contrast media (CM). METHODS:A total of 115 patients with aortic aneurysms were divided into 3 groups: group A, 100 mL CM; group B, 75 mL CM with 20 mL saline f...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000237819.64419.d2
更新日期:2007-05-01 00:00:00
abstract:PURPOSE:The purpose of this work was to investigate the ultrasound (US) and CT features of dropped gallstones mimicking peritoneal seeding in patients after laparoscopic cholecystectomy (LCC). METHOD:We describe the US and CT features of dropped gallstones mimicking peritoneal seeding in eight patients who underwent L...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200211000-00025
更新日期:2002-11-01 00:00:00
abstract::A case in which pus within a bladder diverticulum simulated a deep pelvic abscess is presented. This pitfall in CT diagnosis should be considered in patients with bladder outlet obstruction with symptoms of infection. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199105000-00031
更新日期:1991-05-01 00:00:00
abstract::Ovarian fibromatosis is a rare benign nonneoplastic condition with ovarian enlargement in young women and characterized by a proliferation of collagen-producing spindle cells surrounding normal ovarian structures. We reported magnetic resonance findings of a case that the affected ovarian parenchyma with follicles was...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e318157689a
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to investigate if Hounsfield unit (HU) values from virtual noncontrast (VNC) images derived from portal venous phase spectral-detector computed tomography can help to differentiate adrenal adenomas and metastases. METHODS:Spectral-detector computed tomography datasets of 33 patients...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000982
更新日期:2021-01-01 00:00:00
abstract:PURPOSE:Our goal was to find a causal relation between disk degeneration in nonfused lumbar segments, back pain, and the angle of scoliotic curves 21-30 years after dorsal spondylodesis. METHOD:Thirty-two patients with scoliosis had been treated by dorsal spondylodesis 21-30 years prior to this study (mean 25.2 +/- 2....
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199607000-00015
更新日期:1996-07-01 00:00:00
abstract::We describe a case of disruption of the blood-brain barrier (BBB) by nonionic, low osmolality contrast medium after abdominal angiography. One plausible explanation of this event is that acute hypertension during angiography may have increased the BBB permeability, allowing the contrast medium to leak across it. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198909000-00027
更新日期:1989-09-01 00:00:00
abstract:OBJECTIVE:This study aimed to determine optimal strength of sinogram-affirmed iterative reconstruction (SAFIRE) and to evaluate image quality (IQ) of low-dose chest computed tomography (LDCT) using SAFIRE compared with iterative reconstruction in image space (IRIS) and filtered back projection (FBP). METHODS:Thirty pa...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31828f4dae
更新日期:2013-07-01 00:00:00
abstract::The identification of fat within a focal or diffuse mediastinal lesion significantly narrows the differential diagnosis. In many cases, a specific diagnosis can be suggested on the basis of CT findings. In this article, we illustrate and review the characteristic CT features of common and uncommon fat attenuation lesi...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/00004728-200111000-00010
更新日期:2001-11-01 00:00:00
abstract::An unusual case of isolated injury to the caudate lobe of the liver in a child is presented. The appearance of this injury is described, and its significance in relation to deep vascular structures of the porta hepatis and the portocaval space is discussed. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198805010-00038
更新日期:1988-05-01 00:00:00
abstract::Infiltrating angiolipoma of skeletal muscle is a rare benign tumor that has a tendency to recur unless completely excised. Although CT and angiography have been used to determine its extent, they will not allow a definite diagnosis. We present magnetic resonance findings and assert that an accurate preoperative diagno...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198807000-00037
更新日期:1988-07-01 00:00:00
abstract::Uterine cirsoid aneurysm is uncommon. It is important to make a diagnosis of this disease preoperatively, because repeated curettages may induce life-threatening massive genital bleeding. We present a case of a 51-year-old woman with uterine cirsoid aneurysm in whom MRI and MRA were very useful for the preoperative di...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199603000-00023
更新日期:1996-03-01 00:00:00
abstract:PURPOSE:We assessed the accuracy of coronary computed tomography angiography (CTA) in patients with an Agatston calcium score (ACS) of greater than 400 by comparing it with invasive coronary angiography (ICA), and we evaluated the predictive value of CTA for obstructive coronary heart disease (CHD) compared with tradit...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e318282d61c
更新日期:2013-05-01 00:00:00
abstract:PURPOSE:Acinar cell carcinoma (ACC) is a subtype of pancreatic neoplasm sufficiently rare that its imaging has not been fully analyzed. The purpose of this article is to present the computed tomography (CT) appearance of ACC of the pancreas. METHODS:Clinical data and CT studies of 10 patients (7 male and 3 female) wit...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200403000-00005
更新日期:2004-03-01 00:00:00
abstract::Two cases of von Recklinghausen neurofibromatosis (VRN) with thoracic and abdominal involvement are described. Computed tomography demonstrated the typical lesions of this disease: meningoceles, neurofibromas, and skeletal alterations. In both cases lesion morphology and location were similar and characteristic, in pa...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198310000-00021
更新日期:1983-10-01 00:00:00
abstract:PURPOSE:Electron beam CT (EBCT)-derived coronary artery calcium scores correlate with the extent of atherosclerosis, but there is a substantial variance about the general relationship between coronary calcification and coronary atherosclerosis. The relationship between calcification and atherosclerosis may also differ ...
journal_title:Journal of computer assisted tomography
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004728-199803000-00008
更新日期:1998-03-01 00:00:00
abstract:PURPOSE:Our purpose was to determine what represents normal findings on MR examinations of the lumbar spine in the immediately postoperative period following lumbar laminectomy with retained Surgicel. METHOD:MR examinations were performed immediately following lumbar laminectomy in 10 patients referred for symptoms of...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199911000-00029
更新日期:1999-11-01 00:00:00
abstract:PURPOSE:The purpose of this work was to evaluate the helical CT and CT angiography (CTA) findings of anomalous systemic artery (ASA) to the basal segments of the left lower lobe (LLL). METHOD:Three patients (two had hemoptysis, one was asymptomatic) with blotchy nodular density in the LLL revealed on chest radiographs...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200011000-00026
更新日期:2000-11-01 00:00:00
abstract::We describe a patient with a metastatic liver tumor that showed a cordlike shadow traversing the tumor on CT. Histopathologically, this cordlike shadow within the metastatic liver tumor was proved to be an infiltrated portal vein without blood flow surrounded by fibrous tissue. Vascular structures traversing a focal l...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199501000-00026
更新日期:1995-01-01 00:00:00
abstract::Computed tomographic and magnetic resonance (MR) findings in a case of pseudomyxoma peritonei arising from a mucoid cystadenoma of the ovary are presented. The possible diagnostic aid of MR is discussed. ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198511000-00025
更新日期:1985-11-01 00:00:00
abstract::A test method with use of a biologic phantom--a deep-frozen specimen of a human cadaver--was developed in an attempt to simulate the clinical setting in CT of the spine. The quality of both soft tissue and bone images in the absence of motion artifacts was evaluated for seven scanner models. Special attention was paid...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198611000-00023
更新日期:1986-11-01 00:00:00
abstract::Coronary artery disease is currently the largest killer in the western world, and is estimated to become the leading cause of death worldwide by the year 2020. The question therefore is whether magnetic resonance imaging currently has a place in the already extremely well equipped armamentarium of cardiac testing. Alt...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/00004728-199911001-00019
更新日期:1999-11-01 00:00:00
abstract:OBJECTIVE:We describe and evaluate a preoperative MRI localization procedure for suspected breast lesions. MATERIALS AND METHODS:Fourteen consecutive patients underwent MR localization of suspected breast lesions discovered with contrast-enhanced MRI but not detected by conventional mammography or ultrasound. In each ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199501000-00012
更新日期:1995-01-01 00:00:00