Abstract
PURPOSE: To determine the variability in assessment of the principal inherent characteristics of intracranial aneurysms through the evaluation of interobserver variability for material with uniform quality. METHODS: Blinded interpretations of a single set of cerebral arteriograms of 55 aneurysms were evaluated by several statistical approaches. RESULTS: Excellent correlations were found for the detection and measurement of aneurysms after adjusting for geometric distortion caused by magnification. Progressively decreasing correspondence was found for factors that characterized morphology, including, in order, determination of margins, assessment of accessory appendages, and identification of a neck. DISCUSSION: Correction for geometric distortion was the most critical factor that influenced uniform measurement of size. Standards for measurement and morphologic characteristics were subsequently established for use in the International Study of Unruptured Intracranial Aneurysms.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1407-1415 |
| Number of pages | 9 |
| Journal | American Journal of Neuroradiology |
| Volume | 17 |
| Issue number | 8 |
| State | Published - Sep 1996 |
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Keywords
- Aneurysm, intracranial
- Cerebral angiography
ASJC Scopus subject areas
- Clinical Neurology
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Interobserver variability in angiographic measurement and morphologic characterization of intracranial aneurysms : A report from the International Study of Unruptured Intracranial Aneurysms. / Forbes, Glenn; Fox, Allan J.; Huston, John III; Wiebers, David O.; Torner, James.
In: American Journal of Neuroradiology, Vol. 17, No. 8, 09.1996, p. 1407-1415.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interobserver variability in angiographic measurement and morphologic characterization of intracranial aneurysms
T2 - A report from the International Study of Unruptured Intracranial Aneurysms
AU - Forbes, Glenn
AU - Fox, Allan J.
AU - Huston, John III
AU - Wiebers, David O.
AU - Torner, James
PY - 1996/9
Y1 - 1996/9
N2 - PURPOSE: To determine the variability in assessment of the principal inherent characteristics of intracranial aneurysms through the evaluation of interobserver variability for material with uniform quality. METHODS: Blinded interpretations of a single set of cerebral arteriograms of 55 aneurysms were evaluated by several statistical approaches. RESULTS: Excellent correlations were found for the detection and measurement of aneurysms after adjusting for geometric distortion caused by magnification. Progressively decreasing correspondence was found for factors that characterized morphology, including, in order, determination of margins, assessment of accessory appendages, and identification of a neck. DISCUSSION: Correction for geometric distortion was the most critical factor that influenced uniform measurement of size. Standards for measurement and morphologic characteristics were subsequently established for use in the International Study of Unruptured Intracranial Aneurysms.
AB - PURPOSE: To determine the variability in assessment of the principal inherent characteristics of intracranial aneurysms through the evaluation of interobserver variability for material with uniform quality. METHODS: Blinded interpretations of a single set of cerebral arteriograms of 55 aneurysms were evaluated by several statistical approaches. RESULTS: Excellent correlations were found for the detection and measurement of aneurysms after adjusting for geometric distortion caused by magnification. Progressively decreasing correspondence was found for factors that characterized morphology, including, in order, determination of margins, assessment of accessory appendages, and identification of a neck. DISCUSSION: Correction for geometric distortion was the most critical factor that influenced uniform measurement of size. Standards for measurement and morphologic characteristics were subsequently established for use in the International Study of Unruptured Intracranial Aneurysms.
KW - Aneurysm, intracranial
KW - Cerebral angiography
UR - http://www.scopus.com/inward/record.url?scp=0029817032&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029817032&partnerID=8YFLogxK
M3 - Article
C2 - 8883634
AN - SCOPUS:0029817032
VL - 17
SP - 1407
EP - 1415
JO - American Journal of Neuroradiology
JF - American Journal of Neuroradiology
SN - 0195-6108
IS - 8
ER -