Publications Repository

Publications Repository

View item 
  •   Home
  • ICR Divisions
  • Closed Research Teams
  • View item
  • Home
  • ICR Divisions
  • Closed Research Teams
  • View item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Value of diffusion-weighted imaging for assessing site-specific response of advanced ovarian cancer to neoadjuvant chemotherapy: correlation of apparent diffusion coefficients with epithelial and stromal densities on histology.

Thumbnail
Date
2010-01
ICR Author
Stamp, Gordon
Kaye, Stanley Bernard
deSouza, Nandita
Author
Kyriazi, S
Nye, E
Stamp, G
Collins, DJ
Kaye, SB
deSouza, NM
Show allShow less
Type
Journal Article
Metadata
Show full item record
Abstract
This study correlates apparent diffusion coefficients (ADCs) from Diffusion-weighted Imaging (DWI) in primary ovarian tumours and their omental metastases following neoadjuvant chemotherapy with epithelial and stromal densities in order to relate them to histological composition. Eight patients underwent DWI at 1.5 T with four b-values (0, 600, 900, and 1,050 s/mm(2))at baseline and after one and three cycles of platinum-based chemotherapy. Mean ADCs were calculated at each timepoint from solid tumour at ovarian and omental sites. Specimens from 15 corresponding lesions (8 ovarian, 7 omental), obtained at interval debulking surgery, were stained immunohistochemically to quantify epithelial and stromal components. End-of-treatment ADC was correlated with epithelial and stromal densities. Longitudinal changes in ADC with treatment were compared between primary and metastatic lesions using parametric tests. No baseline differences in ADC between primary and metastatic sites were seen. Mean ADC increased significantly from baseline after both first and third cycle (P < 0.001) in both ovarian and omental lesions. ADC and total epithelial plus stromal density (lesion cellularity) were negatively correlated in ovarian lesions (r= -0.79, P=0.02) but not in omental metastases or when both sites were considered together. However, ADC and epithelial density were negatively correlated in ovarian (r=- 0.78, P=0.02) and omental lesions (r=-0.75, P=0.04) and when both sites were considered together (r=-0.77, P< 0.001). There was no significant correlation between ADC and stromal density. Thus ADC reflects mainly epithelial content in advanced ovarian cancer and is not solely a function of lesion cellularity.
URI
https://repository.icr.ac.uk/handle/internal/1932
DOI
https://doi.org/10.3233/cbm-2010-0194
Collections
  • Closed Research Teams
  • Radiotherapy and Imaging
Subject
Stromal Cells
Epithelial Cells
Humans
Ovarian Neoplasms
Antineoplastic Agents
Diffusion Magnetic Resonance Imaging
Neoplasm Staging
Neoadjuvant Therapy
Densitometry
Adult
Aged
Middle Aged
Female
Research team
Experimental Pathology
Medicine Drug Development Unit (Kaye)
Magnetic Resonance
Language
eng
License start date
2010-01
Citation
Cancer biomarkers : section A of Disease markers, 2010, 7 (4), pp. 201 - 210

Browse

All of ICR repositoryICR DivisionsBy issue dateAuthorsTitlesPublication TypesThis collectionBy issue dateAuthorsTitlesPublication Types
  • Login
  • Registered office: The Institute of Cancer Research, 123 Old Brompton Road, London, SW7 3RP
    A Charity, Not for Profit. Company Limited by Guarantee.
    Registered in England No. 534147. VAT Registration No. GB 849 0581 02.