Accuracy of standard craniometric measurements using multiple data formats.
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| Title: | Accuracy of standard craniometric measurements using multiple data formats. |
|---|---|
| Authors: | Richard, Adam H.1, Parks, Connie L.1, Monson, Keith L.2 keith.monson@ic.fbi.gov |
| Source: | Forensic Science International. 2014, Vol. 242, p177-185. 9p. |
| Subjects: | Craniometry, Anthropologists, Diagnostic imaging, Skull, Three-dimensional imaging, Scanning laser ophthalmoscopy, Physiology |
| Abstract: | With continuing advancements in biomedical imaging technologies, anthropologists are increasingly making use of data derived from indirect measurement and analysis of skeletal material. To that end, the purpose of this study was to test the reliability of 26 standard craniometric measurements routinely utilized in forensic casework across several different imaging technologies. Measurements from five crania of known individuals were collected in duplicate by two anthropologists via computed tomography (CT) scans and three-dimensional (3D) laser scans of the known skulls. The laser scans were also used to create prototype models of the known skulls. These prototypes were, themselves, laser- scanned, and measurements were also collected from the prototypes and the laser scans of the prototypes. Measurement sets from each technology were then compared with one another using the previously collected osteometric measurements taken on the crania themselves as the ground truth. Results indicate that, while the majority of measurements showed no significant differences across data formats, a handful were found to be problematic for particular technologies. For instance, measurements taken in a supero-inferior direction (e.g., BBH, OBH) from CT scans were prone to greater deviation from direct measurements of the cranium than other technologies, especially for CT scans taken at 5 mm thickness and increment. Also, several measurements defined by Type 1 landmarks, particularly those occurring at complicated or indistinct suture junctures (e.g., ASB, ZMB), were found to have high variance across all technologies while measurements based on Type 3 landmarks proved to be highly reproducible. This is contrary to measurements taken directly on crania, in which measures defined by Type 1 landmarks are typically the most reliable, likely attributable to diminished or totally obscured suture definition in the scan data. If medical imaging data are to be increasingly utilized in anthropological studies, it may be prudent to bear in mind that the reliability of measurements taken on an actual skull may not be the same as for measurements taken from medical scans. [ABSTRACT FROM AUTHOR] |
| Copyright of Forensic Science International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 98743350 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Accuracy of standard craniometric measurements using multiple data formats. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Richard%2C+Adam+H%2E%22">Richard, Adam H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Parks%2C+Connie+L%2E%22">Parks, Connie L.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Monson%2C+Keith+L%2E%22">Monson, Keith L.</searchLink><relatesTo>2</relatesTo><i> keith.monson@ic.fbi.gov</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Forensic+Science+International%22">Forensic Science International</searchLink>. 2014, Vol. 242, p177-185. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Craniometry%22">Craniometry</searchLink><br /><searchLink fieldCode="DE" term="%22Anthropologists%22">Anthropologists</searchLink><br /><searchLink fieldCode="DE" term="%22Diagnostic+imaging%22">Diagnostic imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Skull%22">Skull</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+imaging%22">Three-dimensional imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+laser+ophthalmoscopy%22">Scanning laser ophthalmoscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Physiology%22">Physiology</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: With continuing advancements in biomedical imaging technologies, anthropologists are increasingly making use of data derived from indirect measurement and analysis of skeletal material. To that end, the purpose of this study was to test the reliability of 26 standard craniometric measurements routinely utilized in forensic casework across several different imaging technologies. Measurements from five crania of known individuals were collected in duplicate by two anthropologists via computed tomography (CT) scans and three-dimensional (3D) laser scans of the known skulls. The laser scans were also used to create prototype models of the known skulls. These prototypes were, themselves, laser- scanned, and measurements were also collected from the prototypes and the laser scans of the prototypes. Measurement sets from each technology were then compared with one another using the previously collected osteometric measurements taken on the crania themselves as the ground truth. Results indicate that, while the majority of measurements showed no significant differences across data formats, a handful were found to be problematic for particular technologies. For instance, measurements taken in a supero-inferior direction (e.g., BBH, OBH) from CT scans were prone to greater deviation from direct measurements of the cranium than other technologies, especially for CT scans taken at 5 mm thickness and increment. Also, several measurements defined by Type 1 landmarks, particularly those occurring at complicated or indistinct suture junctures (e.g., ASB, ZMB), were found to have high variance across all technologies while measurements based on Type 3 landmarks proved to be highly reproducible. This is contrary to measurements taken directly on crania, in which measures defined by Type 1 landmarks are typically the most reliable, likely attributable to diminished or totally obscured suture definition in the scan data. If medical imaging data are to be increasingly utilized in anthropological studies, it may be prudent to bear in mind that the reliability of measurements taken on an actual skull may not be the same as for measurements taken from medical scans. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Forensic Science International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.forsciint.2014.06.015 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 177 Subjects: – SubjectFull: Craniometry Type: general – SubjectFull: Anthropologists Type: general – SubjectFull: Diagnostic imaging Type: general – SubjectFull: Skull Type: general – SubjectFull: Three-dimensional imaging Type: general – SubjectFull: Scanning laser ophthalmoscopy Type: general – SubjectFull: Physiology Type: general Titles: – TitleFull: Accuracy of standard craniometric measurements using multiple data formats. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Richard, Adam H. – PersonEntity: Name: NameFull: Parks, Connie L. – PersonEntity: Name: NameFull: Monson, Keith L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: 2014 Type: published Y: 2014 Identifiers: – Type: issn-print Value: 03790738 Numbering: – Type: volume Value: 242 Titles: – TitleFull: Forensic Science International Type: main |
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