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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F09%3A00162865%21RIV10-MSM-21230___
rdf:type
n7:Vysledek skos:Concept
dcterms:description
Ultrasonography is a cheap and quick non-invasive medical imaging technique, used as a diagnostic method for autoimmune thyroiditis. This paper shows that B-mode ultrasound images contain weak information related to the presence or absence of antibodies. Ultrasound image analysis is based on textural recognition using probabilistic spatial features. Two studies are performed. The results of the first study show that the spatial texture features we used contain weak information about the presence or absence of TPOAb and TgAb antibodies as measured by conditional entropy. In the second study a classifier is derived from Bayesian decision theory and is tested on a set of 2820 sonograms of 94 subjects. The results of classification to three classes (healthy, thyroiditis with positive antibody test, thyroiditis with negative antibody test) achieved sensitivity 29% and specificity 100% on the test set. Ultrasonography is a cheap and quick non-invasive medical imaging technique, used as a diagnostic method for autoimmune thyroiditis. This paper shows that B-mode ultrasound images contain weak information related to the presence or absence of antibodies. Ultrasound image analysis is based on textural recognition using probabilistic spatial features. Two studies are performed. The results of the first study show that the spatial texture features we used contain weak information about the presence or absence of TPOAb and TgAb antibodies as measured by conditional entropy. In the second study a classifier is derived from Bayesian decision theory and is tested on a set of 2820 sonograms of 94 subjects. The results of classification to three classes (healthy, thyroiditis with positive antibody test, thyroiditis with negative antibody test) achieved sensitivity 29% and specificity 100% on the test set.
dcterms:title
Relation between Structural Changes in B-mode Ultrasound Images of Thyroid Parenchyma and the Presence of Thyroid Antibodies in Blood Sample Relation between Structural Changes in B-mode Ultrasound Images of Thyroid Parenchyma and the Presence of Thyroid Antibodies in Blood Sample
skos:prefLabel
Relation between Structural Changes in B-mode Ultrasound Images of Thyroid Parenchyma and the Presence of Thyroid Antibodies in Blood Sample Relation between Structural Changes in B-mode Ultrasound Images of Thyroid Parenchyma and the Presence of Thyroid Antibodies in Blood Sample
skos:notation
RIV/68407700:21230/09:00162865!RIV10-MSM-21230___
n3:aktivita
n13:Z
n3:aktivity
Z(MSM6840770012)
n3:cisloPeriodika
1
n3:dodaniDat
n4:2010
n3:domaciTvurceVysledku
n17:8930112
n3:druhVysledku
n15:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
338762
n3:idVysledku
RIV/68407700:21230/09:00162865
n3:jazykVysledku
n14:eng
n3:klicovaSlova
B-mode sonography; texture analysis; classification; thyroid gland; autoimmune lymphocytic thyroiditis; thyroid antibodies
n3:klicoveSlovo
n10:classification n10:thyroid%20gland n10:autoimmune%20lymphocytic%20thyroiditis n10:thyroid%20antibodies n10:texture%20analysis n10:B-mode%20sonography
n3:kodStatuVydavatele
PL - Polská republika
n3:kontrolniKodProRIV
[4958DDA964D5]
n3:nazevZdroje
Machine Graphics and Vision
n3:obor
n8:JD
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n4:2009
n3:svazekPeriodika
18
n3:tvurceVysledku
Šára, Radim
n3:zamer
n11:MSM6840770012
s:issn
1230-0535
s:numberOfPages
16
n5:organizacniJednotka
21230