Abstract:
:The purpose of this prospective study was to measure lung attenuation at paired HRCT obtained at full inspiratory/expiratory position, to correlate with pulmonary function tests (PFTs) and to characterize different types of ventilatory impairment. One hundred fifty-five patients with and without pulmonary disease underwent paired HRCT obtained at full inspiratory/expiratory position. Three scan pairs were evaluated by densito- and planimetry using dedicated software. The PFTs were available for correlation in all patients (mean interval 5 days). Mean lung density (MLD) at full inspiration was -813 HU, and MLD at full expiration was -736 HU; both, as well as the expiratory attenuation increase, demonstrated significant correlations with static and dynamic lung volumes: up to r=0.68, p<0.05 for residual volume. The MLD and emphysema indices correlated markedly better for scans obtained at full expiration than at full inspiration, e.g. correlation with the residual volume: r=0.68 compared with r=0.55. Even better correlations were obtained for the lung area (229 cm(2) at inspiration, 190 cm(2) at expiration), up to r=0.74 for the lung area in expiration and the intrathoracic gas volume. Inspiratory MLD and the expiratory attenuation increase were able to differentiate obstructive and restrictive ventilatory impairment from normal subjects, the best results were obtained from scans obtained at full expiratory position ( p<0.05). In conclusion, scans obtained at full expiratory position reveal more functional information than scans obtained at full inspiratory position. Quantitative analysis of CT obtained at full expiratory position provides good estimations of static and dynamic lung volumes as well as significant differences between normal subjects and patients with ventilatory impairment.
journal_name
Eur Radioljournal_title
European radiologyauthors
Kauczor HU,Hast J,Heussel CP,Schlegel J,Mildenberger P,Thelen Mdoi
10.1007/s00330-002-1514-zsubject
Has Abstractpub_date
2002-11-01 00:00:00pages
2757-63issue
11eissn
0938-7994issn
1432-1084journal_volume
12pub_type
杂志文章abstract::The aim of this study was to evaluate the potential of multislice CT angiography (CTA) in detecting hemodynamically significant (> or =70%) lesions of lower extremity inflow and runoff arteries. Fifty patients (42 men, 8 women; mean age 68 years) with peripheral arterial occlusive disease underwent multislice spiral C...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-004-2289-1
更新日期:2004-09-01 00:00:00
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:OBJECTIVES:To compare the scan acquisition time, radiation dose, subjective and objective image quality of two dual-source CT scanners (DSCT) for detection of acute pulmonary embolism. METHODS:Two hundred twenty-one scans performed on the 2nd-generation DSCT and 354 scans on the 3rd-generation DSCT were included in th...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06650-6
更新日期:2020-05-01 00:00:00
abstract::This study aimed to evaluate the influence of a new navigator technique (3D MAG) on navigator efficiency, total acquisition time, image quality and diagnostic accuracy. Fifty-six patients with suspected coronary artery disease underwent free breathing navigator gated coronary MRA (Intera, Philips Medical Systems, 1.5 ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-005-2731-z
更新日期:2005-08-01 00:00:00
abstract:OBJECTIVE:To evaluate an interactive computer-aided detection (CAD) system for reading mammograms to improve decision making. METHODS:A dedicated mammographic workstation has been developed in which readers can probe image locations for the presence of CAD information. If present, CAD findings are displayed with the c...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-010-1821-8
更新日期:2010-10-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5840-1
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVES:MRI can detect early-stage nasopharyngeal carcinoma (NPC), but the detection is more challenging in early-stage NPCs because they must be distinguished from benign hyperplasia in the nasopharynx. This study aimed to determine whether intravoxel incoherent motion diffusion-weighted imaging (IVIM DWI) MRI coul...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06133-8
更新日期:2019-10-01 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/s00330-018-5690-x
更新日期:2019-03-01 00:00:00
abstract::The aim of this study was to assess the added diagnostic value of contrast-enhanced US (CEUS) combined with 64-row multidetector CT (CT) in the assessment of hepatocellular nodule vascularity in patients with liver cirrhosis. One hundred and six cirrhotic patients (68 male, 38 female; mean age +/- SD, 70 +/- 7 years) ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-008-1179-3
更新日期:2009-03-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00330-018-5600-2
更新日期:2019-02-01 00:00:00
abstract::Our purpose was to evaluate the ability of diffusion tensor imaging (DTI) to characterize cervical spinal cord white matter (WM) in patients with multiple sclerosis (MS). DTI were obtained in 21 MS patients and 21 control subjects (CS). Regions of interest (ROIs) were placed at C2/3, C3/4, and C4/5 within the right, l...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-007-0672-4
更新日期:2007-10-01 00:00:00
abstract::Hepatobiliary contrast agents with uptake into hepatocytes followed by variable biliary excretion represent a unique class of cell-specific MR contrast agents. Two hepatobiliary contrast agents, mangafodipir trisodium and gadobenate dimeglumine, are already clinically approved. A third hepatobiliary contrast agent, Gd...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-004-2236-1
更新日期:2004-04-01 00:00:00
abstract:OBJECTIVES:We aimed at establishing the impact upon gadolinium administration on the conspicuity of active enhancing multiple sclerosis (MS) lesions using double inversion recovery (DIR) at 3T. METHODS:15 consecutive patients with MS (n=8) or a clinically isolated syndrome (n=7) underwent pre and post-contrast DIR in ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4416-1
更新日期:2017-02-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-008-1083-x
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVES:To validate a visual rating scale of frontal atrophy with quantitative imaging and study its association with clinical status, APOE ε4, CSF biomarkers, and cognition. METHODS:The AddNeuroMed and ADNI cohorts were combined giving a total of 329 healthy controls, 421 mild cognitive impairment patients, and 28...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-4101-9
更新日期:2016-08-01 00:00:00
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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,评审
doi:10.1007/s00330-005-2828-4
更新日期:2005-10-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00330-014-3508-z
更新日期:2015-05-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/pl00006909
更新日期:1997-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-019-06075-1
更新日期:2019-10-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-012-2726-5
更新日期:2013-05-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-007-0785-9
更新日期:2008-03-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3651-1
更新日期:2015-08-01 00:00:00
abstract::A method for cardio-thoracic multislice spiral CT imaging with ECG gating for suppression of heart pulsation artifacts is introduced. The proposed technique offers extended volume coverage compared with standard ECG-gated spiral scan and reconstruction approaches for cardiac applications: Thin-slice data of the entire...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1388-0
更新日期:2002-06-01 00:00:00
abstract::Photodynamic therapy (PDT) is a well-investigated locoregional cancer treatment in which a systemically administered photosensitizer is activated locally by illuminating the diseased tissue with light of a suitable wavelength. PDT offers various treatment strategies in oncology, especially palliative ones. This articl...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-004-2290-8
更新日期:2004-06-01 00:00:00
abstract:OBJECTIVES:To compare image quality and radiation dose of abdominal split-filter dual-energy CT (SF-DECT) combined with monoenergetic imaging to single-energy CT (SECT) with automatic tube voltage selection (ATVS). METHODS:Two-hundred single-source abdominal CT scans were performed as SECT with ATVS (n = 100) and SF-D...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-018-5338-x
更新日期:2018-08-01 00:00:00
abstract::The original version of this article, published on 07 January 2019, unfortunately contained a mistake. ...
journal_title:European radiology
pub_type: 已发布勘误
doi:10.1007/s00330-019-06044-8
更新日期:2019-06-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-009-1639-4
更新日期:2010-05-01 00:00:00
abstract::Ankle impingement syndromes are categorised according to their anatomical site around the tibiotalar joint. Anterolateral, anterior and posterior ankle impingement has been extensively described in the orthopaedic and radiology literature with more recent studies describing posteromedial and anteromedial impingement. ...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-007-0675-1
更新日期:2007-12-01 00:00:00
abstract::The development and progression of a hepatocellular carcinoma (HCC) in a chronically diseased liver, i.e., the carcinogenesis, comprise a multistep and long-term process. Morphologically, this process is associated with the presence of distinct nodular lesions in the liver that are called 'preneoplastic lesions.' Thes...
journal_title:European radiology
pub_type: 杂志文章,评审
doi:10.1007/s00330-007-0602-5
更新日期:2007-10-01 00:00:00