Faculty Collaboration Database

31P MR spectroscopic imaging detects regenerative changes in human liver stimulated by portal vein embolization. J Magn Reson Imaging 2011 Aug;34(2):336-44

Date

07/23/2011

Pubmed ID

21780228

Pubmed Central ID

PMC3146030

DOI

10.1002/jmri.22616

Scopus ID

2-s2.0-79960579090 (requires institutional sign-in at Scopus site)   3 Citations

Abstract

PURPOSE: First, to evaluate hepatocyte phospholipid metabolism and energetics during liver regeneration stimulated by portal vein embolization (PVE) using proton-decoupled (31)P MR spectroscopic imaging ((31)P-MRSI). Second, to compare the biophysiologic differences between hepatic regeneration stimulated by PVE and by partial hepatectomy (PH).

MATERIALS AND METHODS: Subjects included six patients with hepatic metastases from colorectal cancer who were scheduled to undergo right PVE before definitive resection of right-sided tumor. (31)P-MRSI was performed on the left liver lobe before PVE and 48 h following PVE. Normalized quantities of phosphorus-containing hepatic metabolites were analyzed from both visits. In addition, MRSI data at 48 h following partial hepatectomy were compared with the data from the PVE patients.

RESULTS: At 48 h after PVE, the ratio of phosphomonoesters to phosphodiesters in the nonembolized lobe was significantly elevated. No significant changes were found in nucleoside triphosphates (NTP) and Pi values. The phosphomonoester (PME) to phosphodiester (PDE) ratio in regenerating liver 48 h after partial hepatectomy was significantly greater than PME/PDE 48 h after PVE.

CONCLUSION: (31)P-MRSI is a valid technique to noninvasively evaluate cell membrane metabolism following PVE. The different degree of biochemical change between partial hepatectomy and PVE indicates that hepatic growth following these two procedures does not follow the same course.

Author List

Qi J, Shukla-Dave A, Fong Y, Gönen M, Schwartz LH, Jarnagin WM, Koutcher JA, Zakian KL

Author

Jing Qi MD, PhD Associate Professor in the Radiology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Aged
Aged, 80 and over
Cell Membrane
Embolization, Therapeutic
Female
Hepatectomy
Hepatocytes
Humans
Liver
Liver Neoplasms
Magnetic Resonance Spectroscopy
Male
Middle Aged
Phosphorus Isotopes
Portal Vein
Protons
Spectrophotometry
Time Factors