Comparison of Gd DTPA-BMA (Omniscan) Versus Gd HP-DO3A (ProHance) Retention in Human Bone Tissue by Inductively Coupled Plasma Atomic Emission Spectroscopy

Invest Radiol. 2004 Mar;39(3):138-42. doi: 10.1097/01.rli.0000112789.57341.01.

Abstract

Rationale and objectives: Human bone tissue was collected following administration of a clinical dose of gadolinium chelate (0.1 mmol per kg) to patients undergoing hip joint replacement surgery to determine if measurable differences in Gd deposition occur between 2 widely available magnetic resonance contrast agents.

Materials and methods: Gd HP-DO3A (ProHance), Gd DTPA-BMA (Omniscan), and an age-matched control population without history of gadolinium chelate administration were compared. Bone samples were collected fresh, placed in refrigeration, and subsequently frozen. Tissue digestion was performed using a microwave tissue digester and concentrated nitric acid. A method of tissue analysis was created for gadolinium using inductivity coupled plasma atomic emission spectroscopy (ICP-AES).

Results: Tissue retention was 1.18 +/- .787 microg Gd/g bone (N = 10) for Omniscan and 0.466 +/- .387 microg Gd/g bone (N = 8) for ProHance measured by ICP-AES.

Conclusion: Omniscan (Gd DTPA-BMA) left 2.5 times more Gd behind in bone than did ProHance (Gd HP-DO3A).

Publication types

  • Comparative Study

MeSH terms

  • Aged
  • Contrast Media / metabolism
  • Contrast Media / pharmacokinetics*
  • Femur Head / chemistry*
  • Femur Head / metabolism
  • Gadolinium / analysis*
  • Gadolinium / metabolism
  • Gadolinium DTPA / metabolism
  • Gadolinium DTPA / pharmacokinetics*
  • Heterocyclic Compounds / metabolism
  • Heterocyclic Compounds / pharmacokinetics*
  • Humans
  • Middle Aged
  • Organometallic Compounds / metabolism
  • Organometallic Compounds / pharmacokinetics*
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Spectrophotometry, Atomic / methods

Substances

  • Contrast Media
  • Heterocyclic Compounds
  • Organometallic Compounds
  • gadoteridol
  • gadodiamide
  • Gadolinium
  • Gadolinium DTPA