Hye Jeong Kim1, Dae Young Yoon2, Eun Soo Kim3, Hyung Jin Lee4, Hong Jun Jeon5, Jong Young Lee5, Byung-Moon Cho5. 1. Department of Radiology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea. 2. Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 150, Seongan-ro Gangdong-Gu, Seoul, 134-701, South Korea. evee0914@chollian.net. 3. Department of Radiology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Gyeonggi-do, South Korea. 4. Department of Radiology, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, 150, Seongan-ro Gangdong-Gu, Seoul, 134-701, South Korea. 5. Department of Neurosurgery, Kangdong Seong-Sim Hospital, Hallym University College of Medicine, Seoul, South Korea.
Abstract
PURPOSE: Accurate and reliable measurement of aneurysm size is important for treatment planning. The purpose of this study was to determine intraobserver and interobserver variability of CTA and MRA for measurement of the size of cerebral aneurysms. METHODS: Thirty patients with 33 unruptured cerebral aneurysms (saccular, >3 mm in their maximal dimension, with no daughter sacs or lobulations) who underwent 256-row multislice CTA, 3-D TOF MRA at 3.0T, and 3D rotational angiography (3DRA) were retrospectively analyzed. Three independent observers measured the neck, height, and width of the aneurysms using the CTA and MRA images. Intraobserver and interobserver variability of CTA and MRA measurements was evaluated using the standardized difference and intraclass correlation coefficient, with 3DRA measurements as the reference standard. In addition, the mean values of the measurements using CTA and MRA were compared with those using 3DRA. RESULTS: The overall intraobserver and interobserver standardized differences in CTA/MRA were 12.83-15.92%/13.48-17.45% and 14.08-17.00%/12.08-17.67%, respectively. The overall intraobserver and interobserver intraclass correlation coefficients of CTA/MRA were 0.88-0.98/0.84-0.96 and 0.86-0.98/0.85-0.95, respectively. Compared to the height and width measurements, measurements of the neck dimensions showed higher intraobserver and interobserver variability. The sizes of the cerebral aneurysms measured by CTA and MRA were 1.13-9.26 and 5.20-9.67% larger than those measured by 3DRA, respectively; however, these differences were not statistically significant. CONCLUSION: There were no noticeable differences between intraobserver and interobserver variability for both CTA- and MRA-based measurements of the size of cerebral aneurysms.
PURPOSE: Accurate and reliable measurement of aneurysm size is important for treatment planning. The purpose of this study was to determine intraobserver and interobserver variability of CTA and MRA for measurement of the size of cerebral aneurysms. METHODS: Thirty patients with 33 unruptured cerebral aneurysms (saccular, >3 mm in their maximal dimension, with no daughter sacs or lobulations) who underwent 256-row multislice CTA, 3-D TOF MRA at 3.0T, and 3D rotational angiography (3DRA) were retrospectively analyzed. Three independent observers measured the neck, height, and width of the aneurysms using the CTA and MRA images. Intraobserver and interobserver variability of CTA and MRA measurements was evaluated using the standardized difference and intraclass correlation coefficient, with 3DRA measurements as the reference standard. In addition, the mean values of the measurements using CTA and MRA were compared with those using 3DRA. RESULTS: The overall intraobserver and interobserver standardized differences in CTA/MRA were 12.83-15.92%/13.48-17.45% and 14.08-17.00%/12.08-17.67%, respectively. The overall intraobserver and interobserver intraclass correlation coefficients of CTA/MRA were 0.88-0.98/0.84-0.96 and 0.86-0.98/0.85-0.95, respectively. Compared to the height and width measurements, measurements of the neck dimensions showed higher intraobserver and interobserver variability. The sizes of the cerebral aneurysms measured by CTA and MRA were 1.13-9.26 and 5.20-9.67% larger than those measured by 3DRA, respectively; however, these differences were not statistically significant. CONCLUSION: There were no noticeable differences between intraobserver and interobserver variability for both CTA- and MRA-based measurements of the size of cerebral aneurysms.
Authors: Javier Oliván Bescós; Marjan J Slob; Cornelis H Slump; Menno Sluzewski; Willem Jan van Rooij Journal: AJNR Am J Neuroradiol Date: 2005 Nov-Dec Impact factor: 3.825
Authors: Manasi Ramachandran; Rohini Retarekar; Robert E Harbaugh; David Hasan; Bruno Policeni; Robert Rosenwasser; Christopher Ogilvy; Madhavan L Raghavan Journal: Cardiovasc Eng Technol Date: 2013-03 Impact factor: 2.495
Authors: H Ujiie; H Tachibana; O Hiramatsu; A L Hazel; T Matsumoto; Y Ogasawara; H Nakajima; T Hori; K Takakura; F Kajiya Journal: Neurosurgery Date: 1999-07 Impact factor: 4.654
Authors: B Gregory Thompson; Robert D Brown; Sepideh Amin-Hanjani; Joseph P Broderick; Kevin M Cockroft; E Sander Connolly; Gary R Duckwiler; Catherine C Harris; Virginia J Howard; S Claiborne Clay Johnston; Philip M Meyers; Andrew Molyneux; Christopher S Ogilvy; Andrew J Ringer; James Torner Journal: Stroke Date: 2015-06-18 Impact factor: 7.914
Authors: C Kouskouras; A Charitanti; C Giavroglou; N Foroglou; P Selviaridis; V Kontopoulos; A S Dimitriadis Journal: Neuroradiology Date: 2004-10 Impact factor: 2.804
Authors: Jacoba P Greving; Marieke J H Wermer; Robert D Brown; Akio Morita; Seppo Juvela; Masahiro Yonekura; Toshihiro Ishibashi; James C Torner; Takeo Nakayama; Gabriël J E Rinkel; Ale Algra Journal: Lancet Neurol Date: 2013-11-27 Impact factor: 44.182
Authors: K M Timmins; H J Kuijf; M D I Vergouwen; Y M Ruigrok; B K Velthuis; I C van der Schaaf Journal: AJNR Am J Neuroradiol Date: 2022-02-10 Impact factor: 3.825
Authors: Fernando Macaya; Manuel Moreu; Virginia Ruiz-Pizarro; Carlos H Salazar; Eduardo Pozo; Andrés Aldazábal; Reddy Guerra; Santiago Rosati; Pablo Salinas; Nieves Gonzalo; María J Pérez-Vizcayno; Leopoldo Pérez de Isla; Antonio Fernández-Ortiz; Carlos Macaya; David Adlam; Juan Arrazola; Javier Escaned Journal: Cardiovasc Diagn Ther Date: 2019-06
Authors: K M Timmins; H J Kuijf; M D I Vergouwen; M J Otten; Y M Ruigrok; B K Velthuis; I C van der Schaaf Journal: AJNR Am J Neuroradiol Date: 2021-07-01 Impact factor: 4.966