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 language | English |
|---|---|
| Pages (from-to) | 819-824 |
| Number of pages | 6 |
| Journal | Oncology Letters |
| Volume | 8 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2014 |
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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 journal › Article
}
TY - JOUR
T1 - A new phantom and empirical formula for apparent diffusion coefficient measurement by a 3 Tesla magnetic resonance imaging scanner
AU - Hara, Marina
AU - Kuroda, Masahiro
AU - Ohmura, Yuichi
AU - Matsuzaki, Hidenobu
AU - Kobayashi, Tomoki
AU - Murakami, Jun
AU - Katashima, Kazunori
AU - Ashida, Masakazu
AU - Ohno, Seiichiro
AU - Asaumi, Jun-Ichi
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
KW - 3 Tesla
KW - Apparent diffusion coefficient value
KW - Diffusion-weighted imaging
KW - Magnetic resonance imaging
KW - Phantom
KW - Sucrose
UR - http://www.scopus.com/inward/record.url?scp=84902319163&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84902319163&partnerID=8YFLogxK
U2 - 10.3892/ol.2014.2187
DO - 10.3892/ol.2014.2187
M3 - Article
VL - 8
SP - 819
EP - 824
JO - Oncology Letters
JF - Oncology Letters
SN - 1792-1074
IS - 2
ER -