Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma

Daniel Kook*, Thomas C Kreutzer*, Armin Wolf, Christos HaritoglouDepartment of Ophthalmology, Ludwig-Maximilians University, Munich, Germany*These authors contributed equallyBackground: The purpose of this study was to evaluate the applicability and variability of echographic imaging using 10 mHz an...

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Autores principales:	Kook D, Kreutzer TC, Wolf A, Haritoglou C
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/2f6841ac3878416c873dee8749818ad3
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spelling	oai:doaj.org-article:2f6841ac3878416c873dee8749818ad32021-12-02T00:43:09ZVariability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma1177-54671177-5483https://doaj.org/article/2f6841ac3878416c873dee8749818ad32011-04-01T00:00:00Zhttp://www.dovepress.com/variability-of-standardized-echographic-ultrasound-using-10-mhz-and-hi-a7133https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Daniel Kook, Thomas C Kreutzer, Armin Wolf, Christos HaritoglouDepartment of Ophthalmology, Ludwig-Maximilians University, Munich, Germany*These authors contributed equallyBackground: The purpose of this study was to evaluate the applicability and variability of echographic imaging using 10 mHz and high-resolution 20 mHz B scanning for measurement of intraocular tumors.Methods: This prospective consecutive study comprises 27 eyes in 27 patients with uveal melanoma. Each patient was examined by three experienced examiners independently on three occasions within a two-week time frame in a blinded manner. The height of the lesion was measured by all examiners using the 10 mHz B, 20 mHz B, and 8 mHz A scan probes. Additionally, basal diameter was examined using the 10 and 20 mHz B scan.Results: Tumor height measurements for all examiners using the standardized A scan tended to be higher than for both B scan measurements. Statistical analysis revealed significant differences in tumor height between B and A scan measurements. No difference in tumor height was found between the two B scan techniques (P = 0.239). Basal tumor diameter measurements revealed significant differences between 10 mHz and 20 mHz B scans (P &lt; 0.001 and P = 0.001, respectively). For the 10 mHz B scan, basal diameter results tended to be larger than for the 20 mHz B scan. No difference was found for interobserver variation in all A scan and B scan examinations. The mean standard deviation of the difference in tumor height measurements between the examiners was &plusmn;0.24 mm for the 8 mHz A scan, &plusmn;0.46 mm for the 10 mHz B scan, and &plusmn;0.42 mm for the 20 mHz B scan. Both the 10 mHz and more precise 20 mHz B scan evaluations underestimated tumor height.Conclusion: The 20 mHz ultrasound probe, despite its theoretically higher resolution, is not able to replace A scan measurements of tumor height.Keywords: standardized echography, 20 mHz, B scan, A scan, intraocular tumor Kook DKreutzer TCWolf AHaritoglou CDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2011, Iss default, Pp 477-482 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Kook D Kreutzer TC Wolf A Haritoglou C Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma
description	Daniel Kook, Thomas C Kreutzer, Armin Wolf, Christos HaritoglouDepartment of Ophthalmology, Ludwig-Maximilians University, Munich, Germany*These authors contributed equallyBackground: The purpose of this study was to evaluate the applicability and variability of echographic imaging using 10 mHz and high-resolution 20 mHz B scanning for measurement of intraocular tumors.Methods: This prospective consecutive study comprises 27 eyes in 27 patients with uveal melanoma. Each patient was examined by three experienced examiners independently on three occasions within a two-week time frame in a blinded manner. The height of the lesion was measured by all examiners using the 10 mHz B, 20 mHz B, and 8 mHz A scan probes. Additionally, basal diameter was examined using the 10 and 20 mHz B scan.Results: Tumor height measurements for all examiners using the standardized A scan tended to be higher than for both B scan measurements. Statistical analysis revealed significant differences in tumor height between B and A scan measurements. No difference in tumor height was found between the two B scan techniques (P = 0.239). Basal tumor diameter measurements revealed significant differences between 10 mHz and 20 mHz B scans (P &lt; 0.001 and P = 0.001, respectively). For the 10 mHz B scan, basal diameter results tended to be larger than for the 20 mHz B scan. No difference was found for interobserver variation in all A scan and B scan examinations. The mean standard deviation of the difference in tumor height measurements between the examiners was &plusmn;0.24 mm for the 8 mHz A scan, &plusmn;0.46 mm for the 10 mHz B scan, and &plusmn;0.42 mm for the 20 mHz B scan. Both the 10 mHz and more precise 20 mHz B scan evaluations underestimated tumor height.Conclusion: The 20 mHz ultrasound probe, despite its theoretically higher resolution, is not able to replace A scan measurements of tumor height.Keywords: standardized echography, 20 mHz, B scan, A scan, intraocular tumor
format	article
author	Kook D Kreutzer TC Wolf A Haritoglou C
author_facet	Kook D Kreutzer TC Wolf A Haritoglou C
author_sort	Kook D
title	Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma
title_short	Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma
title_full	Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma
title_fullStr	Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma
title_full_unstemmed	Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma
title_sort	variability of standardized echographic ultrasound using 10 mhz and high-resolution 20 mhz b scan in measuring intraocular melanoma
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/2f6841ac3878416c873dee8749818ad3
work_keys_str_mv	AT kookd variabilityofstandardizedechographicultrasoundusing10mhzandhighresolution20mhzbscaninmeasuringintraocularmelanoma AT kreutzertc variabilityofstandardizedechographicultrasoundusing10mhzandhighresolution20mhzbscaninmeasuringintraocularmelanoma AT wolfa variabilityofstandardizedechographicultrasoundusing10mhzandhighresolution20mhzbscaninmeasuringintraocularmelanoma AT haritoglouc variabilityofstandardizedechographicultrasoundusing10mhzandhighresolution20mhzbscaninmeasuringintraocularmelanoma
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Variability of standardized echographic ultrasound using 10 mHz and high-resolution 20 mHz B scan in measuring intraocular melanoma

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