Relationship between Two Types of Coil Packing Densities Relative to Aneurysm Size

Keun Young Park; Byung Moon Kim; Eun Hyun Ihm; Jang Hyun Baek; Dong Joon Kim; Dong Ik Kim; Seung Kon Huh; Jae Whan Lee

doi:10.1111/jon.12140

Relationship between Two Types of Coil Packing Densities Relative to Aneurysm Size

Keun Young Park, Byung Moon Kim, Eun Hyun Ihm, Jang Hyun Baek, Dong Joon Kim, Dong Ik Kim, Seung Kon Huh, Jae Whan Lee

Department of Radiology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

BACKGROUND AND PURPOSE: Coil packing density (PD) can be calculated via a formula (PD_F) or software (PD_S). Two types of PD can be different from each other for same aneurysm. This study aimed to evaluate the interobserver agreement and relationships between the 2 types of PD relative to aneurysm size. METHODS: Consecutive 420 saccular aneurysms were treated with coiling. PD (PD_F, [coil volume]/[volume calculated by formula] and PD_S, [coil volume]/[volume measured by software]) was calculated and prospectively recorded. Interobserver agreement was evaluated between PD_F and PD_S. Additionally, the relationships between PD_F and PD_S relative to aneurysm size were subsequently analyzed. RESULTS: Interobserver agreement for PD_F and PD_S was excellent (Intraclass correlation coefficient, PD_F; 0.967 and PD_S; 0.998). The ratio of PD_F and PD_S was greater for smaller aneurysms and converged toward 1.0 as the maximum dimension (D_M) of aneurysm increased. Compared with PD_S, PD_F was overestimated by a mean of 28% for D_M < 5 mm, by 17% for 5 mm ≤ D_M < 10 mm, and by 9% for D_M ≥ 10 mm (P < 0.01). CONCLUSIONS: Interobserver agreement for PD_F and PD_S was excellent. However, PD_F was overestimated in smaller aneurysms and converged to PD_S as aneurysm size increased.

Original language	English
Pages (from-to)	415-419
Number of pages	5
Journal	Journal of Neuroimaging
Volume	25
Issue number	3
DOIs	https://doi.org/10.1111/jon.12140
Publication status	Published - 2015 May 1

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Publisher Copyright:
© 2014 by the American Society of Neuroimaging.

All Science Journal Classification (ASJC) codes

Radiology Nuclear Medicine and imaging
Clinical Neurology

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10.1111/jon.12140

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@article{3fa7337e3d4a4367b97e5458364cb271,

title = "Relationship between Two Types of Coil Packing Densities Relative to Aneurysm Size",

abstract = "BACKGROUND AND PURPOSE: Coil packing density (PD) can be calculated via a formula (PDF) or software (PDS). Two types of PD can be different from each other for same aneurysm. This study aimed to evaluate the interobserver agreement and relationships between the 2 types of PD relative to aneurysm size. METHODS: Consecutive 420 saccular aneurysms were treated with coiling. PD (PDF, [coil volume]/[volume calculated by formula] and PDS, [coil volume]/[volume measured by software]) was calculated and prospectively recorded. Interobserver agreement was evaluated between PDF and PDS. Additionally, the relationships between PDF and PDS relative to aneurysm size were subsequently analyzed. RESULTS: Interobserver agreement for PDF and PDS was excellent (Intraclass correlation coefficient, PDF; 0.967 and PDS; 0.998). The ratio of PDF and PDS was greater for smaller aneurysms and converged toward 1.0 as the maximum dimension (DM) of aneurysm increased. Compared with PDS, PDF was overestimated by a mean of 28% for DM < 5 mm, by 17% for 5 mm ≤ DM < 10 mm, and by 9% for DM ≥ 10 mm (P < 0.01). CONCLUSIONS: Interobserver agreement for PDF and PDS was excellent. However, PDF was overestimated in smaller aneurysms and converged to PDS as aneurysm size increased.",

author = "Park, {Keun Young} and Kim, {Byung Moon} and Ihm, {Eun Hyun} and Baek, {Jang Hyun} and Kim, {Dong Joon} and Kim, {Dong Ik} and Huh, {Seung Kon} and Lee, {Jae Whan}",

note = "Publisher Copyright: {\textcopyright} 2014 by the American Society of Neuroimaging.",

year = "2015",

month = may,

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doi = "10.1111/jon.12140",

language = "English",

volume = "25",

pages = "415--419",

journal = "Journal of Neuroimaging",

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T1 - Relationship between Two Types of Coil Packing Densities Relative to Aneurysm Size

AU - Park, Keun Young

AU - Kim, Byung Moon

AU - Ihm, Eun Hyun

AU - Baek, Jang Hyun

AU - Kim, Dong Joon

AU - Kim, Dong Ik

AU - Huh, Seung Kon

AU - Lee, Jae Whan

PY - 2015/5/1

Y1 - 2015/5/1

N2 - BACKGROUND AND PURPOSE: Coil packing density (PD) can be calculated via a formula (PDF) or software (PDS). Two types of PD can be different from each other for same aneurysm. This study aimed to evaluate the interobserver agreement and relationships between the 2 types of PD relative to aneurysm size. METHODS: Consecutive 420 saccular aneurysms were treated with coiling. PD (PDF, [coil volume]/[volume calculated by formula] and PDS, [coil volume]/[volume measured by software]) was calculated and prospectively recorded. Interobserver agreement was evaluated between PDF and PDS. Additionally, the relationships between PDF and PDS relative to aneurysm size were subsequently analyzed. RESULTS: Interobserver agreement for PDF and PDS was excellent (Intraclass correlation coefficient, PDF; 0.967 and PDS; 0.998). The ratio of PDF and PDS was greater for smaller aneurysms and converged toward 1.0 as the maximum dimension (DM) of aneurysm increased. Compared with PDS, PDF was overestimated by a mean of 28% for DM < 5 mm, by 17% for 5 mm ≤ DM < 10 mm, and by 9% for DM ≥ 10 mm (P < 0.01). CONCLUSIONS: Interobserver agreement for PDF and PDS was excellent. However, PDF was overestimated in smaller aneurysms and converged to PDS as aneurysm size increased.

AB - BACKGROUND AND PURPOSE: Coil packing density (PD) can be calculated via a formula (PDF) or software (PDS). Two types of PD can be different from each other for same aneurysm. This study aimed to evaluate the interobserver agreement and relationships between the 2 types of PD relative to aneurysm size. METHODS: Consecutive 420 saccular aneurysms were treated with coiling. PD (PDF, [coil volume]/[volume calculated by formula] and PDS, [coil volume]/[volume measured by software]) was calculated and prospectively recorded. Interobserver agreement was evaluated between PDF and PDS. Additionally, the relationships between PDF and PDS relative to aneurysm size were subsequently analyzed. RESULTS: Interobserver agreement for PDF and PDS was excellent (Intraclass correlation coefficient, PDF; 0.967 and PDS; 0.998). The ratio of PDF and PDS was greater for smaller aneurysms and converged toward 1.0 as the maximum dimension (DM) of aneurysm increased. Compared with PDS, PDF was overestimated by a mean of 28% for DM < 5 mm, by 17% for 5 mm ≤ DM < 10 mm, and by 9% for DM ≥ 10 mm (P < 0.01). CONCLUSIONS: Interobserver agreement for PDF and PDS was excellent. However, PDF was overestimated in smaller aneurysms and converged to PDS as aneurysm size increased.

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Relationship between Two Types of Coil Packing Densities Relative to Aneurysm Size

Abstract

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