Abstract:
OBJECTIVE:To compare imaging findings with histopathology in AML without visible fat (AMLwvf). MATERIAL AND METHODS:With IRB approval, we identified 18 AMLwvf that underwent CT between 2002-2014. A radiologist measured NECT-attenuation, corticomedullary (CM) and nephrographic (NG) enhancement, echogenicity relative to renal cortex (RC) (N = 5), T2W (T2AML/T2RC) signal-intensity (SI), and chemical-shift SI ([SIIN-PHASE - SIOPPOSED-PHASE]/SIIN-PHASE) indices (N = 6). A pathologist re-evaluated 15/18 AMLwvf for 1) < or > 25% adipocytes/high-power-field (HPF), 2) "many or few" blood vessels. Comparisons were performed using chi-square and independent t-tests. RESULTS:73.3%(11/15) of AMLwvf had <25% adipocytes/HPF and 86.7%(13/15) had "many" blood vessels. NECT-attenuation was 41.8(±6.9) HU. 61.1 %(11/18) of AMLwvf were hyper-attenuating and 38.9%(7/18) iso-attenuating; attenuation was associated with %-adipocytes/HPF, (p = 0.01). CM/NG enhancement were 63.3(±20.8)/51.7(±15.5) HU. 72.2%(13/18) of AMLwvf had wash-out enhancement, with no association with amount of blood vessels at pathology, (p = 0.68). No difference in echogenicity was noted by histology (p > 0.05). All AMLwvf were T2-hypointense (SI ratio = 0.61 [±0.1]). 2/6 AMLwvf showed SI drop on chemical-shift MRI; both were iso-attenuating and were associated with >25% adipocytes/HPF (p = 0.04). CONCLUSIONS:AMLwvf are typically T2-hypointense and hyper-attenuating with wash-out enhancement due to abundant smooth muscle and vessels respectively. Iso-attenuating AMLwvf with microscopic fat on MRI contain more adipocytes/HPF. KEY POINTS:• Five percent of AML do not demonstrate detectable fat on imaging • These AML are hyperattenuating and T2-hypointense due to abundant smooth muscle • These AML show washout enhancement without association to vessel count at histopathology • Iso-attenuating AML with microscopic fat on MRI show >25% adipocytes/HPF • The term "AML without visible fat" is proposed to reduce ambiguity.
journal_name
Eur Radioljournal_title
European radiologyauthors
Hakim SW,Schieda N,Hodgdon T,McInnes MD,Dilauro M,Flood TAdoi
10.1007/s00330-015-3851-8subject
Has Abstractpub_date
2016-02-01 00:00:00pages
592-600issue
2eissn
0938-7994issn
1432-1084pii
10.1007/s00330-015-3851-8journal_volume
26pub_type
杂志文章abstract:OBJECTIVES:Diagnostic accuracy of conventional coronary CT angiography (CCTAconv) may be compromised by blooming artifacts from calcifications or stents. Blooming artifacts may be reduced by subtraction coronary CT angiography (CCTAsub) in which non-contrast and contrast CT data sets are subtracted digitally. We tested...
journal_title:European radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00330-018-5418-y
更新日期:2018-10-01 00:00:00
abstract::Arteriovenous malformations of the scrotum are extremely rare. A case of scrotal arteriovenous malformation and its preoperative embolization in a child is presented. ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050686
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:To retrospectively evaluate the diagnostic performance of single-phase dual-energy CT (DECT) with virtual non-contrast CT (VNCT) compared with three-phase CT urography (CTU) in patients with haematuria. METHODS:A total of 296 patients underwent three-phase CTU (NCT at 120 kVp; nephrographic phase and excreto...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4206-9
更新日期:2016-10-01 00:00:00
abstract::The authors described a very rare case of the cystic lymphangioma (CL) of the left upper extremity in a 12-year-old patient. The diagnosis was made by US and MRI and confirmed by histological examination of the resected specimen. ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-004-2347-8
更新日期:2005-02-01 00:00:00
abstract:OBJECTIVES:To evaluate thread sign of biliary intraductal papillary mucinous neoplasm (B-IPMN) on magnetic resonance imaging (MRI). METHODS:Thread sign was defined as intraductal linear or curvilinear hypointense striations. Two radiologists independently evaluated the presence and location of thread sign on MR cholan...
journal_title:European radiology
pub_type: 杂志文章
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更新日期:2016-09-01 00:00:00
abstract:OBJECTIVES:To evaluate the longitudinal changes of chest CT findings in patients with chronic hypersensitivity pneumonitis (HP) and identify risk factors for fibrotic progression and acute exacerbation (AE). METHODS:This retrospective study included patients with chronic HP with follow-up CT. Baseline and serial follo...
journal_title:European radiology
pub_type: 杂志文章
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更新日期:2020-11-25 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,实务指引
doi:10.1007/s00330-007-0792-x
更新日期:2008-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s00330-009-1581-5
更新日期:2010-03-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s00330-017-5274-1
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5567-z
更新日期:2019-02-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-003-2017-2
更新日期:2004-05-01 00:00:00
abstract::Magnetic resonance (MR) arthrography has gained increasing popularity as a diagnostic tool in the assessment of intra-articular derangements. Its role has been studied extensively in the shoulder, but it also has been explored in the hip, elbow, knee, wrist and ankle. This article reviews the current role of direct MR...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-004-2449-3
更新日期:2004-11-01 00:00:00
abstract::The purpose of this study was to determine the feasibility and features of low-field MR imaging in performing interstitial laser ablation of osteoid osteomas. Between September 2001 and April 2002, five consecutive patients with clinical and imaging findings suggesting osteoid osteoma and referred for removal of osteo...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-003-1897-5
更新日期:2003-10-01 00:00:00
abstract::We investigated the consequence of repeated transcatheter arterial chemoembolization (TACE) for coexisting small hepatic hemangioma in the treatment of patients with hepatocellular carcinomas and describe the imaging features of embolized hemangioma on the follow-up Lipiodol CT and MR. Six of 431 patients with biopsy-...
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pub_type: 杂志文章
doi:10.1007/s00330-005-0074-4
更新日期:2006-06-01 00:00:00
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journal_title:European radiology
pub_type: 信件
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更新日期:2019-08-01 00:00:00
abstract::Developmental nasal midline masses in children are rare lesions. Neuroimaging is essential to characterise these lesions, to determine the exact location of the lesion and most importantly to exclude a possible intracranial extension or connection. Our objective was to evaluate CT and MRI in the diagnosis of developme...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-003-2008-3
更新日期:2004-02-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00330-019-06613-x
更新日期:2020-05-01 00:00:00
abstract::Acute liver failure (ALF)-related encephalopathy was previously characterized by MR spectroscopy of single voxels containing both grey and white matter brain tissue. Quantitative multivoxel MRS was used here to compare grey and white matter brain tissue concentrations of glutamate/glutamine (Glx) and lactate in ALF an...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-008-1049-z
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVES:To evaluate the methodological quality of diagnostic accuracy studies on coronary computed tomography (CT) angiography using the QUADAS (Quality Assessment of Diagnostic Accuracy Studies included in systematic reviews) tool. METHODS:Each QUADAS item was individually defined to adapt it to the special requir...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2763-0
更新日期:2013-06-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s003300050130
更新日期:1997-01-01 00:00:00
abstract::We decided to test to what extent dose reduction is possible in abdominal spiral computed tomography (CT) in young children without loss of anatomic diagnostic information. A retrospective study was performed of 30 abdominal CT examinations of children aged 3 months to 7 years. These were divided into two groups: grou...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300100989
更新日期:2001-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,多中心研究
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更新日期:2012-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-015-3984-9
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVE:To test a digital imaging X-ray device based on the direct capture of X-ray photons with pixel detectors, which are coupled with photon-counting readout electronics. METHODS:The chip consists of a matrix of 256 × 256 pixels with a pixel pitch of 55 μm. A monolithic image of 11.2 cm × 7 cm was obtained by the...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-011-2246-8
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the role of core-needle biopsy (CNB) by comparing the results of CNB and repeated fine-needle aspiration (FNA) for thyroid nodules with initially non-diagnostic FNA results. METHODS:From October 2008 to December 2011, 360 nodules - 180 consecutive repeated FNAs and 180 consecutive CNBs -- from 36...
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pub_type: 杂志文章
doi:10.1007/s00330-014-3325-4
更新日期:2014-11-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-007-0668-0
更新日期:2007-12-01 00:00:00
abstract::The gamekeeper's or skier's thumb is a very common injury. Nondisplaced tears of the ulnar collateral ligament of the thumb (UCL) may be treated conservatively. For that reason an accurate diagnosis is mandatory for choosing the correct therapy. Ultrasound is able to depict the position of the torn UCL correctly in ap...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s003300050111
更新日期:1997-01-01 00:00:00
abstract::The influence of the frequency of computed tomography (CT) image acquisition on the diagnostic quality of dynamic perfusion CT (PCT) studies of the brain was investigated. Eight patients with clinically suspected acute ischemia of one hemisphere underwent PCT, performed on average 3.4 h after the onset of symptoms. Si...
journal_title:European radiology
pub_type: 杂志文章
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更新日期:2008-12-01 00:00:00
abstract::This study addressed the use of 3D MR angiography with flip angles (FAs) linearly varying across the excitation volume in order to diminish spin saturation. The shape of the ramp profile was varied to optimize the method for different regions and pathological alterations. Radio frequency pulses with ramp-shaped excita...
journal_title:European radiology
pub_type: 杂志文章
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更新日期:1996-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
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更新日期:2013-02-01 00:00:00