Abstract:
OBJECTIVE:There is an ongoing debate about how to handle incidental findings (IF) detected in healthy individuals who participate in research-driven magnetic resonance imaging (MRI) studies. There are currently no established guidelines regarding their management. METHODS:We prospectively assessed the frequency of IF in 206 young healthy volunteers who additionally underwent structural MRIs of the whole brain as part of a scientific MRI protocol. RESULTS:Assessment of the structural MRI by 2 board-certified neuroradiologists revealed IF in 19% of the subjects (n = 39). In approximately half of these subjects (n = 21), these findings were of potential clinical relevance (eg, arteriovenous malformations, cavernomas, pituitary abnormalities) and required further diagnostic investigations. None of these potentially relevant IF prompted immediate active medical treatment. CONCLUSIONS:Incidental findings are very frequent in young healthy volunteers. Because many of the IF require further diagnostic workup, standardized procedures for MRI and the handling of these images are mandatory to ensure competent clinical management.
journal_name
J Comput Assist Tomogrjournal_title
Journal of computer assisted tomographyauthors
Hartwigsen G,Siebner HR,Deuschl G,Jansen O,Ulmer Sdoi
10.1097/RCT.0b013e3181d9c2bbsubject
Has Abstractpub_date
2010-07-01 00:00:00pages
596-600issue
4eissn
0363-8715issn
1532-3145pii
00004728-201007000-00018journal_volume
34pub_type
杂志文章abstract:OBJECTIVE:The purpose of this study is to evaluate whether laterality of the superficial cerebral veins can be seen on susceptibility-weighted imaging (SWI) in patients with no intracranial lesions that affect venous visualization. METHODS:We retrospectively evaluated 386 patients who underwent brain magnetic resonanc...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000000637
更新日期:2018-01-01 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::Gadolinium diethylenetriamine pentaacetic acid (DTPA) enhanced magnetic resonance imaging was performed in eight patients with Cushing disease and surgically proven pituitary microadenomas. A 1.5 T scanner was used with 3 mm contiguous slices. Short repetition times (TR), short echo times (TE), and long TR, long TE se...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198809010-00002
更新日期:1988-09-01 00:00:00
abstract::To evaluate the efficacy of myocardial T2 values in the assessment of allograft rejection, we performed magnetic resonance (MR) imaging at 0.5 T serially in seven cardiac transplant recipients and singly in seven normal volunteers. Cardiac-gated multi-echo spin echo images were obtained; T2 values were estimated by a ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199001000-00012
更新日期:1990-01-01 00:00:00
abstract::Pseudodynamic MR imaging of the temporomandibular joints (TMJs) has been used for the evaluation of the functional aspects of the TMJs. To evaluate the value of T1-weighted spin-echo (SE) and gradient-echo (GE) techniques, both techniques were performed in 9 asymptomatic (mean 25.7 years, 22-23 years), and 25 symptoma...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199605000-00025
更新日期:1996-05-01 00:00:00
abstract:PURPOSE:Our goal was to review the CT findings and to help define the role of CT in the evaluation of appendicitis in children. METHOD:Of 730 children with surgically proven appendicitis, 22 underwent preoperative CT evaluation. Their CT scans and operative and pathology records were retrospectively reviewed. The CT s...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199707000-00028
更新日期:1997-07-01 00:00:00
abstract:OBJECTIVES:The aim of this study is to evaluate the effect of heart rate on exposure window, best phase, and image quality for stress computed tomography perfusion (CTP) in the CORE320 study. METHODS:The CTP data sets were analyzed to determine the best phase for perfusion analysis. A predefined exposure window coveri...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,多中心研究
doi:10.1097/RCT.0000000000000514
更新日期:2017-03-01 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::This paper reports two cases of benign extramedullary tumors of the foramen magnum studied by computed tomography (CT). The first case was a neurinoma; the second was a meningioma. Several different CT findings allowed a correct preoperative diagnosis of the location and nature of the tumors. In view of the invasivene...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198004000-00021
更新日期:1980-04-01 00:00:00
abstract::Cranial CT studies of 32 patients with biopsy-proven AIDS-related primary CNS lymphoma were reviewed retrospectively. A wide variety of different CT appearances were identified. Mass lesions varied in location, size, and number. Most lesions were either iso- or hyperdense and all enhanced with contrast medium. Several...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199101000-00004
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:To capture 3D shape variation of the levator ani during straining with open access MR imaging. METHODS:Optimal scan-planning based on statistical shape modeling is developed for recovering the entire 3D structure of the levator ani from a limited number of 2D imaging planes. Statistical shape modeling ensure...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/01.rct.0000155076.42784.ed
更新日期:2005-03-01 00:00:00
abstract::Kinetic analysis of 18F-labeled 2-fluoro-2-deoxy-D-glucose (2FDG) has been carried out in 28 studies on 25 subjects. The object of the analysis was to determine the practical problems of quantitation of glucose metabolic rate (GMR) using the Sokoloff model with 2FDG. We found that arterial and venous plasma concentrat...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198310000-00038
更新日期:1983-10-01 00:00:00
abstract:OBJECTIVE:Differentiation of invasive thymoma from thymic carcinoma is important because of their different clinical behaviors. Retrospectively, we evaluated the CT findings of invasive thymomas and thymic carcinomas to determine the differential points between them. MATERIALS AND METHODS:We reviewed the CT scans of 1...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-199503000-00005
更新日期:1995-03-01 00:00:00
abstract::Image quality in cranial computed tomography (CT) was evaluated with phantom and patient studies on both a first (single beam) and a second (multiple beam) generation scanner. When comparable radiation doses were used, there were only minor differences in resolution, low contrast detectability, and noise level. The pa...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-197807000-00020
更新日期:1978-07-01 00:00:00
abstract::The authors present findings from a scientific study in a 36-year-old male patient who was transferred for the evaluation of a restenosis in aortic coarctation that was initially treated by surgical repair. Contrast-enhanced magnetic resonance angiography and comprehensive flow-sensitive 4-dimensional magnetic resonan...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3181906766
更新日期:2009-09-01 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::Extraskeletal spread of multiple myeloma is common and may cause jaundice due to hepatic infiltration. Less commonly, involvement of the pancreas may cause obstructive jaundice. We present a patient with multiple myeloma who became jaundiced. Computed tomography revealed an obstructing pancreatic mass. Aspiration biop...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:
更新日期:1985-11-01 00:00:00
abstract::The magnetic resonance characteristics of 16 intracranial arachnoid cysts were evaluated and several features identified that allowed the differentiation from other cystic lesions. Uncomplicated arachnoid cyst contents respond like CSF to both T1 and T2 weighted sequences. Signal from the contiguous brain is of normal...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198703000-00007
更新日期:1987-03-01 00:00:00
abstract::Flow phenomena occurring after the bolus injection of contrast material can simulate the presence of pathology on thoracic computed tomography. In a review of 50 dynamic scans performed after contrast medium injection, apparent filling defects in the superior vena cava were seen in 46. In four cases, retrograde fillin...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198206000-00004
更新日期:1982-06-01 00:00:00
abstract:OBJECTIVE:To prospectively investigate the feasibility of an 80-kilovolt (peak) (kVp) protocol in computed tomographic venography for varicose veins of the lower extremities by comparison with conventional 120-kVp protocol. METHODS:Attenuation values and signal-to-noise ratio of iodine contrast medium (CM) were determ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e3182621ea9
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Neonatal hypoxic-ischemic encephalopathy (HIE) is associated with dysfunctional cerebral autoregulation. Resistive index (RI) measured in the anterior cerebral artery on transfontanellar head ultrasound is a noninvasive measure of blood flow and may indicate autoregulation dysfunction. We tested whether RI w...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0000000000001069
更新日期:2020-09-01 00:00:00
abstract::Computed tomography (CT) has enabled noninvasive evaluation of coronary bypass graft patency. Thirty-three patients operated on with 75 venous coronary bypass grafts were studied in the early postoperative period. Scans were taken with geometric magnification with a field of view of 16 or 24 cm, which gave a high spat...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198112000-00006
更新日期:1981-12-01 00:00:00
abstract::We aim to review the imaging appearance of peripheral nerve sheath tumors (PNSTs) of head and neck according to updated fourth edition of World Health Organization classification. Peripheral nerve sheath tumor can be sporadic or associated with neurofibromatosis type 1, neurofibromatosis type 2, and schwannomatosis. S...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章,评审
doi:10.1097/RCT.0000000000001109
更新日期:2020-11-01 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::The goal of neuro-oncologic surgery is to maximize tumor resection while preserving vital brain functions. Identification of the relation between the tumor and adjacent functional cortical areas as well as efferent subcortical white matter tracts is important for preservation of function. Combined diffusion tensor ima...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200407000-00019
更新日期:2004-07-01 00:00:00
abstract::Two projection algorithms are currently available for viewing computed tomography (CT) data sets: average projection (AVG) and maximum intensity projection (MIP). Although AVG images feature good suppression of image noise but reduced edge sharpness, MIP images are characterized by good edge sharpness but also amplify...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/RCT.0b013e31812e4b37
更新日期:2008-05-01 00:00:00
abstract::The anatomy of the teeth and surrounding bony structures is easily illustrated by computed CT image protocols, which produce detailed surface renderings of this complex area. The purpose of this article is to label the dental and bony landmarks of the maxilla, mandible, and palatine bones together with the adjacent re...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-200209000-00035
更新日期:2002-09-01 00:00:00
abstract::Elevation of the anterior part of the right diaphragm results in the spurious radiological appearance of a mass at the right lung base. Standard chest views are usually sufficient to show the true nature of the "mass." Occasionally, however, a true mass lesion cannot be entirely excluded, and further studies are then ...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/00004728-198110000-00023
更新日期:1981-10-01 00:00:00
abstract:PURPOSE:To evaluate the optimal timing of delayed phase imaging for detecting low-flow endoleaks. MATERIALS AND METHODS:Fifty-eight patients with unruptured abdominal aortic aneurysm treated with endovascular repair underwent 1- and 6-month follow-up multidetector row computed tomography (CT) performed during unenhanc...
journal_title:Journal of computer assisted tomography
pub_type: 临床试验,杂志文章
doi:10.1097/RCT.0b013e31814b271d
更新日期:2008-07-01 00:00:00
abstract::Pneumatosis cystoides coli (PCC) is an uncommon condition in which multiple gas-filled cysts in the walls of the colon. Patients with PCC initially complain of various symptoms including abdominal discomfort, constipation, diarrhea, hematochezia, vomiting, and fever. We recently diagnosed PCC by computed tomography (C...
journal_title:Journal of computer assisted tomography
pub_type: 杂志文章
doi:10.1097/rct.0b013e31805d08ca
更新日期:2008-01-01 00:00:00