Best zero level for external ICP transducer

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Fältnamn	Indikatorer	Metadata
000		04513naa a2200457 4500
001		oai:lup.lub.lu.se:91fe46c6-6580-4420-8a00-0e99841152ac
003		SwePub
008		190321s2019 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://lup.lub.lu.se/record/91fe46c6-6580-4420-8a00-0e99841152ac2 URI
024	7	a https://doi.org/10.1007/s00701-019-03856-x2 DOI
040		a (SwePub)lu
041		a engb eng
042		9 SwePub
072	7	a art2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a Reinstrup, Peteru Skåne University Hospital4 aut0 (Swepub:lu)anes-pre
245	1 0	a Best zero level for external ICP transducer
264		c 2019-03-08
264	1	b Springer Science and Business Media LLC,c 2019
520		a Background: Continuous monitoring of intracranial pressure (ICP) was introduced in the 1950s. For correct ICP recordings, the zero-reference point for the external pressure gauge must be placed next to a head anatomical structure. We evaluated different anatomical points as zero reference for the ICP device at different head positions and their relation to brain centre (BC), foramen of Monro (Monro), and brain surface. Methods: Patients referred for neuroimaging due to e.g. headache all having normal 3D MRI scans were selected. Monro, BC, Orbit(O), external auditory meatus (EAM), and orbito-meatal (OM) line were identified and projected to mid-sagittal, or axial images. Each scan was evaluated like lying supine, 45° head elevations, upright, and 45° lateral position. Distances from skin to brain surface, BC, and Monro were measured. All values are presented as mean ± SD and/or range in millimetre. For conversion to mmHg, millimetre was multiplied by 0.074. Results: Twenty MRI scans were examined. A zero reference at EAM or glabella was ideal at BC when head was strict supine or in the lateral position. At 45° head elevation, an overestimation of the BC-ICP by 4.8 ± 0.8 and in upright 5.6 ± 0.5 mmHg was found, and 45° lateral underestimated ICP-BC by 6.3 ± 1.0 mmHg. Monro was situated 45 ± 5 mm rostral to the mid-OM line and 24 (18–31) mm inferior and 13 (8–17) mm in front of BC. A zero-reference point aligned with the highest point of the head underestimated BC-ICP and Monro-ICP. If the ICP reading was added 5.9 or 6.3 mmHg, respectively, a deviation from BC-ICP was ≤ 1.8 mmHg and Monro-ICP was ≤ 0.9 mmHg in all head positions. Conclusions: EAM and glabella are defined anatomical structures representing BC when strict supine or lateral but with 12 mmHg variation with different head positions used in clinical practice. The OM line follows Monro at head elevation, but not when the head is turned. When the highest external point on the head is used, ICP values at brain surface as well as Monro and BC are underestimated. This underestimation is fairly constant and, when corrected for, provides the most exact ICP reading.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Neurologi0 (SwePub)302072 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Neurology0 (SwePub)302072 hsv//eng
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Kirurgi0 (SwePub)302122 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Surgery0 (SwePub)302122 hsv//eng
653		a ICP
653		a Intracranial pressure
653		a Monitoring
653		a Zero reference point
700	1	a Unnerbäck, Mårtenu Skåne University Hospital4 aut0 (Swepub:lu)med-mru
700	1	a Marklund, Niklasu Lund University,Lunds universitet,Skåne University Hospital4 aut0 (Swepub:lu)ni0588ma
700	1	a Schalen, Wilhelmu Skåne University Hospital4 aut0 (Swepub:lu)nkir-wsc
700	1	a Arrocha, Jesus Cabrerau University Hospital Of Canary Islands4 aut
700	1	a Bloomfield, Eric L.u Mayo Clinic Minnesota4 aut
700	1	a Sadegh, Vahabiu Skåne University Hospital4 aut
700	1	a Hesselgard, Karinu Skåne University Hospital4 aut0 (Swepub:lu)neur-khe
710	2	a Lunds universitetb Skåne University Hospital4 org
773	0	t Acta Neurochirurgicad : Springer Science and Business Media LLCg 161:4, s. 635-642q 161:4<635-642x 0001-6268x 0942-0940
856	4	u http://dx.doi.org/10.1007/s00701-019-03856-xx freey FULLTEXT
856	4	u https://link.springer.com/content/pdf/10.1007/s00701-019-03856-x.pdf
856	4 8	u https://lup.lub.lu.se/record/91fe46c6-6580-4420-8a00-0e99841152ac
856	4 8	u https://doi.org/10.1007/s00701-019-03856-x

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Av författaren/redakt...: Reinstrup, Peter; Unnerbäck, Mårte ...; Marklund, Niklas; Schalen, Wilhelm; Arrocha, Jesus C ...; Bloomfield, Eric ...; visa fler...; Sadegh, Vahabi; Hesselgard, Kari ...; visa färre...

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