A new phantom and empirical formula for apparent diffusion coefficient measurement by a 3 Tesla magnetic resonance imaging scanner

Marina Hara, Masahiro Kuroda, Yuichi Ohmura, Hidenobu Matsuzaki, Tomoki Kobayashi, Jun Murakami, Kazunori Katashima, Masakazu Ashida, Seiichiro Ohno, Jun-Ichi Asaumi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The aim of this study was to create a new phantom for a 3 Tesla (3T) magnetic resonance imaging (MRI) device for the calculation of the apparent diffusion coefficient (ADC) using diffusion-weighted imaging (DWI), and to mimic the ADC values of normal and tumor tissues at various temperatures, including the physiological body temperature of 37 °C. The phantom was produced using several concentrations of sucrose from 0 to 1.2 M, and the DWI was performed using various phantom temperatures. The accurate ADC values were calculated using the DWIs of the phantoms, and an empirical formula was developed to calculate the ADC values of the phantoms from an arbitrary sucrose concentration and arbitrary phantom temperature. The empirical formula was able to produce ADC values ranging between 0.33 and 3.02x10-3 mm2/sec, which covered the range of ADC values of the human body that have been measured clinically by 3T MRI in previous studies. The phantom and empirical formula developed in this study may be available to mimic the ADC values of the clinical human lesion by 3T MRI.

Original languageEnglish
Pages (from-to)819-824
Number of pages6
JournalOncology Letters
Volume8
Issue number2
DOIs
Publication statusPublished - 2014

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Magnetic Resonance Imaging
Temperature
Sucrose
Body Temperature
Human Body
Reference Values
Equipment and Supplies
Neoplasms

Keywords

  • 3 Tesla
  • Apparent diffusion coefficient value
  • Diffusion-weighted imaging
  • Magnetic resonance imaging
  • Phantom
  • Sucrose

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

A new phantom and empirical formula for apparent diffusion coefficient measurement by a 3 Tesla magnetic resonance imaging scanner. / Hara, Marina; Kuroda, Masahiro; Ohmura, Yuichi; Matsuzaki, Hidenobu; Kobayashi, Tomoki; Murakami, Jun; Katashima, Kazunori; Ashida, Masakazu; Ohno, Seiichiro; Asaumi, Jun-Ichi.

In: Oncology Letters, Vol. 8, No. 2, 2014, p. 819-824.

Research output: Contribution to journalArticle

Hara, Marina ; Kuroda, Masahiro ; Ohmura, Yuichi ; Matsuzaki, Hidenobu ; Kobayashi, Tomoki ; Murakami, Jun ; Katashima, Kazunori ; Ashida, Masakazu ; Ohno, Seiichiro ; Asaumi, Jun-Ichi. / A new phantom and empirical formula for apparent diffusion coefficient measurement by a 3 Tesla magnetic resonance imaging scanner. In: Oncology Letters. 2014 ; Vol. 8, No. 2. pp. 819-824.
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