@article{ART003397422},
author={Hyo Hyun Choi},
title={Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain},
journal={Journal of The Korea Society of Computer and Information},
issn={1598-849X},
year={2026},
volume={31},
number={10},
pages={147-157}
TY - JOUR
AU - Hyo Hyun Choi
TI - Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain
JO - Journal of The Korea Society of Computer and Information
PY - 2026
VL - 31
IS - 10
PB - The Korean Society Of Computer And Information
SP - 147
EP - 157
SN - 1598-849X
AB - Cross-institutional medical image exchange is fundamental to patient-centered care, but transfer histories of sensitive images must be retained in a trustworthy form. This paper presents VADREX (Verifiable Audit for Revocation-Aware DICOM Exchange), an audit protocol and implementation framework that lets patients verify the finality of an anchored consent-revocation entry within the checked log history. VADREX combines append-only logs and log-backed maps, and uses cross-referenced entries and signatures to resolve disputes when the required records are anchored. It does not authenticate the revocation-request time or prove the absence of unlogged physical transfers. In a two-institution DICOMweb evaluation, proof size less than doubled as the log grew from 10³ to 10⁶ entries, individual proof verification took a few milliseconds, and all 90 supplementary evaluation outcomes across ten repetitions matched expectations.
KW - Medical Imaging;Consent Revocation;Verifiable Log;Sparse Merkle Tree;Non-repudiation;DICOMweb;Blockchain
DO -
UR -
ER -
Hyo Hyun Choi. (2026). Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain. Journal of The Korea Society of Computer and Information, 31(10), 147-157.
Hyo Hyun Choi. 2026, "Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain", Journal of The Korea Society of Computer and Information, vol.31, no.10 pp.147-157.
Hyo Hyun Choi "Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain" Journal of The Korea Society of Computer and Information 31.10 pp.147-157 (2026) : 147.
Hyo Hyun Choi. Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain. 2026; 31(10), 147-157.
Hyo Hyun Choi. "Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain" Journal of The Korea Society of Computer and Information 31, no.10 (2026) : 147-157.
Hyo Hyun Choi. Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain. Journal of The Korea Society of Computer and Information, 31(10), 147-157.
Hyo Hyun Choi. Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain. Journal of The Korea Society of Computer and Information. 2026; 31(10) 147-157.
Hyo Hyun Choi. Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain. 2026; 31(10), 147-157.
Hyo Hyun Choi. "Verifiable Audit for Revocation-Aware DICOM Exchange on Blockchain" Journal of The Korea Society of Computer and Information 31, no.10 (2026) : 147-157.
