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 - Publication - Bridge of Knowledge

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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)

  • Photo of  Sonia Kaniuka-Jakubowska

    Sonia Kaniuka-Jakubowska

    • GUMed Department of Endocrinology and Internal Medicine
  • Photo of  Maciej Piskunowicz

    Maciej Piskunowicz

    • GUMed Zakład Radiologii
  • Photo of  Adam Zapaśnik

    Adam Zapaśnik

    • GUMed Zakład Radiologii
  • Photo of  Anna Lewczuk

    Anna Lewczuk

    • GUMed Department of Endocrinology and Internal Medicine
  • Photo of  Aneta Kaniuka

    Aneta Kaniuka

    • Pomeranian Medical University Department of Diagnostic Imaging and Interventional Radiology
  • Photo of  Krystyna Mizan-Gross

    Krystyna Mizan-Gross

    • GUMed Department of Nuclear Medicine
  • Photo of  Piotr Lass

    Piotr Lass

    • GUMed Zakład Medycyny Nuklearnej
  • Photo of  Krzysztof Sworczak

    Krzysztof Sworczak

    • GUMed Department of Endocrinology and Internal Medicine

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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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