Diffusion-Weighted MR Imaging to Evaluate Immediate Response to Irreversible Electroporation in a Rabbit VX2 Liver Tumor Model.
Journal
Journal of vascular and interventional radiology : JVIR
ISSN: 1535-7732
Titre abrégé: J Vasc Interv Radiol
Pays: United States
ID NLM: 9203369
Informations de publication
Date de publication:
Nov 2019
Nov 2019
Historique:
received:
23
01
2019
revised:
26
05
2019
accepted:
31
05
2019
pubmed:
23
9
2019
medline:
3
3
2020
entrez:
23
9
2019
Statut:
ppublish
Résumé
To evaluate the feasibility of diffusion-weighted imaging (DWI) in magnetic resonance imaging for quantitative measurement of responses following irreversible electroporation (IRE) in a rabbit liver tumor model. Twelve rabbits underwent ultrasound-guided VX2 tumor implantation in the left medial and left lateral liver lobes. The tumors in the left medial lobe were treated with IRE, whereas those in the left lateral lobe served as internal controls. DWI was performed before and immediately after IRE. Tumors were then harvested for histopathologic staining. The apparent diffusion coefficient (ADC) and change in ADC (ΔADC) were calculated based on DWI. Tumor apoptosis index (AI) was assessed by terminal deoxynucleotidyl transferase dUTP nick-end labeling. These measurements from DWI and histopathology were compared between untreated and treated tumors. The ADC values, ΔADC, and AI showed statistically significant differences between treated and untreated tumors (P < .05 for all). ADC values were higher in treated tumors than in untreated tumors (1.08 × 10 DWI can be used to quantitatively evaluate treatment response in liver tumors immediately after IRE.
Identifiants
pubmed: 31542271
pii: S1051-0443(19)30540-8
doi: 10.1016/j.jvir.2019.05.030
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1863-1869Informations de copyright
Published by Elsevier Inc.