Abstract:
:The aim of this study was to analyze the precision of tibial cartilage morphometry, by using a fast, coronal water-excitation sequence with high spatial resolution, to compare the reproducibility of 3D thickness vs volume estimates, and to test the technique in patients with severe osteoarthritis. The tibiae of 8 healthy volunteers and 3 patients selected for total knee arthroplasty were imaged repeatedly with a water-excitation sequence (image time 6 h 19 min, resolution 1.2 x 0.31 x 0.31 mm(3)), with the knee being repositioned between each replicate acquisition. After 3D reconstruction, the cartilage volume, the mean, and the maximal tibial cartilage thickness were determined by 3D Euclidean distance transformation. In the volunteers, the precision of the volume measurements was 2.3 % (CV%) in the medial and 2.6 % in the lateral tibia. The reproducibility of the mean cartilage thickness was similar (2.6 and 2.5 %, respectively), and that of the maximal thickness lower (6.5 and 4.4 %). The patients showed a considerable reduction in volume and thickness, the precision being comparable with that in the volunteers. We find that, using a new imaging protocol and computational algorithm, it is possible to determine tibial cartilage morphometry with high precision in healthy individuals as well as in patients with osteoarthritis.
journal_name
Eur Radioljournal_title
European radiologyauthors
Hyhlik-Dürr A,Faber S,Burgkart R,Stammberger T,Maag KP,Englmeier KH,Reiser M,Eckstein Fdoi
10.1007/s003300050047subject
Has Abstractpub_date
2000-01-01 00:00:00pages
297-303issue
2eissn
0938-7994issn
1432-1084pii
00100297.330journal_volume
10pub_type
杂志文章abstract::The aim of this study was to assess the correlation between 18F-fluorodeoxyglucose positron emission tomography (FDG PET) positivity of tumor recurrence and vascularity, Ki-67, p53, and histologic grade in patients with ovarian cancer. Nineteen patients with recurrent ovarian cancer underwent FDG PET before second-loo...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-006-0326-y
更新日期:2007-02-01 00:00:00
abstract::To evaluate the efficiency of laser thermocoagulation under computed tomography (CT) guidance in the treatment of osteoid osteoma within a strictly pediatric group. Twenty-five patients aged 4 to 17 years were treated under CT by laser thermocoagulation. The nidus measured on average 10.1 mm. Pain relief was the main ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-008-1173-9
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVES:To assess the treatment-induced changes of health-related quality-of-life (HRQoL) in patients with venous malformations (VM) who underwent ethanol gel sclerotherapy. METHODS:The prospective study in children and adults was approved by the local ethics committee. 31 patients (mean age 23.42 years, range 6.6 ...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-016-4603-0
更新日期:2017-06-01 00:00:00
abstract::Primary misplaced or secondary flipped implanted catheters are located mostly in the right jugular vein. We demonstrate an effective method to replace fix implanted catheters such as Ports, Grochomg or Hickman catheters. Using a femoral venous approach, replacement into the superior vena cava can easily be done with a...
journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-001-1151-y
更新日期:2002-03-01 00:00:00
abstract::The purpose of this study was to investigate if experienced readers differ when matching polyps shown by both CT colonography (CTC) and optical colonoscopy (OC) and to explore the reasons for discrepancy. Twenty-eight CTC cases with corresponding OC were presented to eight experienced CTC readers. Cases represented a ...
journal_title:European radiology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00330-009-1328-3
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVES:To compare radiation doses in cone beam computed tomography (CBCT) with those of multi-detector computed tomography (MDCT) using manufacturers' standard protocols. METHODS:Dose-levels in head and abdominal imaging were evaluated using a dosimetric phantom. Effective dose estimates were performed by placing ...
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更新日期:2013-11-01 00:00:00
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更新日期:2016-09-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
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journal_title:European radiology
pub_type: 杂志文章,多中心研究
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journal_title:European radiology
pub_type: 杂志文章
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更新日期:1999-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-015-3716-1
更新日期:2015-10-01 00:00:00
abstract::Contrast-enhanced MRI (CE-MRI) of the breast has been investigated for over 10 years. The reports of sensitivity for cancer detection have generally been greater than 90 %. However, estimates of specificity have varied greatly. Differing results are due to differences in study populations, technical methods and criter...
journal_title:European radiology
pub_type: 杂志文章,评审
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更新日期:1997-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2019-01-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章,评审
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更新日期:1998-01-01 00:00:00
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更新日期:2016-06-01 00:00:00
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journal_title:European radiology
pub_type: 杂志文章
doi:10.1007/s00330-002-1640-7
更新日期:2003-04-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s00330-007-0642-x
更新日期:2007-10-01 00:00:00
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更新日期:2015-03-01 00:00:00
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更新日期:2021-01-07 00:00:00
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journal_title:European radiology
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更新日期:2006-08-01 00:00:00
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更新日期:2016-05-01 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:2004-06-01 00:00:00
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更新日期:2016-10-01 00:00:00
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journal_title:European radiology
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更新日期:1997-01-01 00:00:00
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更新日期:2012-01-01 00:00:00
abstract::Blunt injury of the extrahepatic bile duct is rare and hence a large series of scientific study of its MRI is difficult to perform. We present the MRI and MR cholangiography of a case of blunt extrahepatic bile duct injury proven at surgery. The diagnosis could be established based on MRI findings of an abrupt taperin...
journal_title:European radiology
pub_type: 杂志文章
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更新日期:2002-10-01 00:00:00