Caliper navigation for craniotomy planning of convexity targets.

<h4>Introduction</h4>A technique to localize a radiological target on the head convexity fast and with acceptable precision is sufficient for surgeries of superficial intracranial lesions, and of help in the setting of emergency surgery, computer navigation breakdown, limited resources a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Max Jägersberg, Michael Kosterhon, Florian Ringel
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/002a481740ca4668aea3a7d38ecb729d
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:002a481740ca4668aea3a7d38ecb729d
record_format	dspace
spelling	oai:doaj.org-article:002a481740ca4668aea3a7d38ecb729d2021-12-02T20:04:00ZCaliper navigation for craniotomy planning of convexity targets.1932-620310.1371/journal.pone.0251023https://doaj.org/article/002a481740ca4668aea3a7d38ecb729d2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251023https://doaj.org/toc/1932-6203<h4>Introduction</h4>A technique to localize a radiological target on the head convexity fast and with acceptable precision is sufficient for surgeries of superficial intracranial lesions, and of help in the setting of emergency surgery, computer navigation breakdown, limited resources and education. We present a caliper technique based on fundamental geometry, with inexpensive and globally available tools (conventional CT or MRI image viewer, calculator, caliper).<h4>Methods</h4>The distances of the radiological target from two landmarks (nasion and porus acusticus externus) are assessed with an image viewer and Pythagoras' theorem. The two distances are then marked around the landmarks onto the head of the patient with help of a caliper. The intersection defines the target. We tested the technique in a saw bone skull model and afterwards in the operating room. Convexity targets were localized with the caliper navigation technique and then with computer navigation as ground truth.<h4>Results</h4>In the saw bone model, the mean offset between the caliper navigated target and the real target was 2.9 ± 2.8 mm, 95% CI (1.6 mm; 4.2 mm). The mean offset between computer navigated target and real target was 1.6 ± 0.9 mm, 95% CI (1.2 mm; 2 mm) (ns). In 15 patients undergoing navigated cranial procedures, 100 targets were assessed in reference to computer navigation. The mean offset of the caliper navigation was 11 ± 5.2 mm, 95% CI (9.9 mm; 12 mm).<h4>Conclusion</h4>This is a low-tech approach for translation of a radiological target to the patient's head in short time and with globally available inexpensive tools, with satisfying precision for many procedures.Max JägersbergMichael KosterhonFlorian RingelPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251023 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Max Jägersberg Michael Kosterhon Florian Ringel Caliper navigation for craniotomy planning of convexity targets.
description	<h4>Introduction</h4>A technique to localize a radiological target on the head convexity fast and with acceptable precision is sufficient for surgeries of superficial intracranial lesions, and of help in the setting of emergency surgery, computer navigation breakdown, limited resources and education. We present a caliper technique based on fundamental geometry, with inexpensive and globally available tools (conventional CT or MRI image viewer, calculator, caliper).<h4>Methods</h4>The distances of the radiological target from two landmarks (nasion and porus acusticus externus) are assessed with an image viewer and Pythagoras' theorem. The two distances are then marked around the landmarks onto the head of the patient with help of a caliper. The intersection defines the target. We tested the technique in a saw bone skull model and afterwards in the operating room. Convexity targets were localized with the caliper navigation technique and then with computer navigation as ground truth.<h4>Results</h4>In the saw bone model, the mean offset between the caliper navigated target and the real target was 2.9 ± 2.8 mm, 95% CI (1.6 mm; 4.2 mm). The mean offset between computer navigated target and real target was 1.6 ± 0.9 mm, 95% CI (1.2 mm; 2 mm) (ns). In 15 patients undergoing navigated cranial procedures, 100 targets were assessed in reference to computer navigation. The mean offset of the caliper navigation was 11 ± 5.2 mm, 95% CI (9.9 mm; 12 mm).<h4>Conclusion</h4>This is a low-tech approach for translation of a radiological target to the patient's head in short time and with globally available inexpensive tools, with satisfying precision for many procedures.
format	article
author	Max Jägersberg Michael Kosterhon Florian Ringel
author_facet	Max Jägersberg Michael Kosterhon Florian Ringel
author_sort	Max Jägersberg
title	Caliper navigation for craniotomy planning of convexity targets.
title_short	Caliper navigation for craniotomy planning of convexity targets.
title_full	Caliper navigation for craniotomy planning of convexity targets.
title_fullStr	Caliper navigation for craniotomy planning of convexity targets.
title_full_unstemmed	Caliper navigation for craniotomy planning of convexity targets.
title_sort	caliper navigation for craniotomy planning of convexity targets.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/002a481740ca4668aea3a7d38ecb729d
work_keys_str_mv	AT maxjagersberg calipernavigationforcraniotomyplanningofconvexitytargets AT michaelkosterhon calipernavigationforcraniotomyplanningofconvexitytargets AT florianringel calipernavigationforcraniotomyplanningofconvexitytargets
_version_	1718375582167728128

Caliper navigation for craniotomy planning of convexity targets.

Ejemplares similares