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US not bright but right method of thyroid volume estimation even in large and substernal extended goitres. Comparison of US and three methods of CT thyroid evaluation - prospective study.ON LINE
Abstract
Background Ultrasound is nowadays a method of choice for thyroid volume assessment. However, its disadvantage is some inaccuracy, which is said to be higher in huge, especially substernally extended goitres. Aims The aim of the study was to compare the US and CT thyroid volumetric measurements: multi-observers (CT MO) and one-observer (CT OO) to CT planimetry results (CT Pl) in patients with large goitres. Materials & Methods The study material comprised 70 thyroid imaging examinations obtained from 35 patients with nontoxic goitres, scanned twice before and after radioiodine treatment. Mean thyroid volume was 88·97 ± 60·21 ml. Thirty-three thyroid scans revealed the extension below the jugular notch (mean of 2·46 cm). Thyroid volume in US, CT MO and CT OO was estimated using the ellipsoid formula. CT Pl was established a reference method. Results The mean thyroid volume in CT Pl was 88·97 ml (median 80·73, range 11·81 to 315·97). US underestimates thyroid volume by 7·55 ml (7·7%) with a sufficient correlation (R2 = 0·89) and precision (20·37). CT OO is the closest and CT MO the most distant from CT Pl, with US between them in thyroid volume estimation. The percentage US bias is constant through all range of thyroid volume. There is no difference for percentage bias between US and CT Pl for goitres with (8·67%), and without (6·70%) substernal part. Conclusion US examination is sufficient for epidemiological studies, radioiodine activity calculation and goitre size assessment in everyday medical practice. Neither initial size of the goitre nor its substernal extension affects US assessment precision.
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Authors (9)
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Sonia Kaniuka-Jakubowska
- GUMed Department of Endocrinology and Internal Medicine
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Maciej Piskunowicz
- GUMed Zakład Radiologii
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Adam Zapaśnik
- GUMed Zakład Radiologii
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Anna Lewczuk
- GUMed Department of Endocrinology and Internal Medicine
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Aneta Kaniuka
- Pomeranian Medical University Department of Diagnostic Imaging and Interventional Radiology
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Krystyna Mizan-Gross
- GUMed Department of Nuclear Medicine
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Piotr Lass
- GUMed Zakład Medycyny Nuklearnej
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Krzysztof Sworczak
- GUMed Department of Endocrinology and Internal Medicine
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
CLINICAL ENDOCRINOLOGY
no. 83,
edition 3,
pages 412 - 419,
ISSN: 0300-0664 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Kaniuka-Jakubowska S., Piskunowicz M., Zapaśnik A., Lewczuk A., Kaniuka A., Mizan-Gross K., Kaszubowski M., Lass P., Sworczak K.: US not bright but right method of thyroid volume estimation even in large and substernal extended goitres. Comparison of US and three methods of CT thyroid evaluation - prospective study.ON LINE// CLINICAL ENDOCRINOLOGY. -Vol. 83, iss. 3 (2015), s.412-419
- DOI:
- Digital Object Identifier (open in new tab) 10.1111/cen.12629
- Verified by:
- Gdańsk University of Technology
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