About: Comparative study of imaging at 3.0 T versus 1.5 T of the knee

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About: Comparative study of imaging at 3.0 T versus 1.5 T of the knee Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Comparative study of imaging at 3.0 T versus 1.5 T of the knee
Creator	Zhao, Jian Wong, Scott Benjamin, C Link, Thomas Stehling, Christoph Steinbach, Lynne
topic	covid:4584849e8847f64610d8af0c25b63859aaa0d1b3#this
source	PMC
abstract	PURPOSE: The objectives of the study were to compare MR imaging at 1.5 and 3.0 T in the same patients concerning image quality and visualization of cartilage pathology and to assess diagnostic performance using arthroscopy as a standard of reference. MATERIALS AND METHODS: Twenty-six patients were identified retrospectively as having comparative 1.5 and 3.0 T MR studies of the knee within an average of 102 days. Standard protocols included T1-weighted and fat-saturated intermediate-weighted fast spin-echo sequences in three planes; sequence parameters had been adjusted to account for differences in relaxation at 3.0 T. Arthroscopy was performed in 19 patients. Four radiologists reviewed each study independently, scored image quality, and analyzed pathological findings. Sensitivities, specificities, and accuracies in diagnosing cartilage lesions were calculated in the 19 patients with arthroscopy, and differences between 1.5 and 3.0 T exams were compared using paired Student’s t tests with a significance threshold of p < 0.05. RESULTS: Each radiologist scored the 3.0 T studies higher than those obtained at 1.5 T in visualizing anatomical structures and abnormalities (p < 0.05). Using arthroscopy as a standard of reference, diagnosis of cartilage abnormalities was improved at 3.0 T with higher sensitivity (75.7% versus 70.6%), accuracy (88.2% versus 86.4%), and correct grading of cartilage lesions (51.3% versus 42.9%). Diagnostic confidence scores were higher at 3.0 than 1.5 T (p < 0.05) and signal-to-noise ratio at 3.0 T was approximately twofold higher than at 1.5 T. CONCLUSION: MRI at 3.0 T improved visualization of anatomical structures and improved diagnostic confidence compared to 1.5 T. This resulted in significantly better sensitivity and grading of cartilage lesions at the knee.
has issue date	2009-04-07(xsd:dateTime)
bibo:doi	10.1007/s00256-009-0683-0
bibo:pmid	19350234
has license	no-cc
sha1sum (hex)	4584849e8847f64610d8af0c25b63859aaa0d1b3
schema:url	https://doi.org/10.1007/s00256-009-0683-0
resource representing a document's title	Comparative study of imaging at 3.0 T versus 1.5 T of the knee
has PubMed Central identifier	PMC2704948
has PubMed identifier	19350234
schema:publication	Skeletal Radiol
resource representing a document's body	covid:4584849e8847f64610d8af0c25b63859aaa0d1b3#body_text
is http://vocab.deri.ie/void#inDataset of	proxy:http/ns.inria.fr/covid19/4584849e8847f64610d8af0c25b63859aaa0d1b3
is schema:about of	named entity 'radiologists' named entity 'threshold' named entity 'grading' named entity 'confidence' named entity 'improved' named entity 'lesions' named entity 'structures' named entity 'diagnosis' named entity 'Diagnostic' named entity 'knee' named entity 'study' named entity 'PARAMETERS' named entity 'AVERAGE' named entity 'PATHOLOGY' named entity 'PERFORMANCE' named entity 'CONFIDENCE' named entity 'SIGNAL-TO-NOISE RATIO' named entity 'DIAGNOSING' named entity 'ACCURACY' named entity 'PERFORMED' named entity 'STUDENT' named entity '27S' named entity 'MR IMAGING' named entity 'T TESTS' named entity 'REFERENCE' named entity 'KNEE' named entity 'DIAGNOSTIC' named entity 'ABNORMALITIES' named entity 'SATURATED' covid:arg/4584849e8847f64610d8af0c25b63859aaa0d1b3 named entity 'calculated' named entity 'paired' named entity 'compare' named entity 'compared' named entity 'Arthroscopy' named entity 'left knee' named entity 'lesion' named entity 'cartilage' named entity 'radiologist' named entity 'Meniscal' named entity 'heterogeneity' named entity 'subchondral' named entity 'Health Insurance Portability and Accountability Act' named entity 'institutional review board' named entity 'Orlando, FL' named entity 'MR imaging' named entity 'anatomy' named entity 'meniscal tear' named entity 'lesion' named entity 'lateral meniscus' named entity 'MRI' named entity 'confidence' named entity 'cartilage' named entity 'radiologist' named entity 'scores' named entity 'protocols' named entity 'Results' named entity 'compared' named entity 'anterior cruciate ligament' named entity 'meniscal' named entity 'ankle joint' named entity 'cartilage' named entity 'lesion' named entity 'radiologist' named entity 'radiologist' named entity 'MR imaging' named entity 'menisci' named entity 'cartilage' named entity 'cartilage' named entity 'MRI studies' named entity 'arthroscopic' named entity 'articular surfaces' named entity 'lesion' named entity 'TR 3'

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