TY - JOUR
T1 - Temporal changes in sucrose phantoms for magnetic resonance imaging
T2 - effects of preparation temperatures
AU - Takatsu, Yasuo
AU - Iwase, Akiyoshi
AU - Hayashi, Naoki
AU - Oita, Masataka
AU - Mizutani, Kenmei
AU - Ito, Mizuki
AU - Miyati, Tosiaki
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Japanese Society of Radiological Technology and Japan Society of Medical Physics 2025.
PY - 2025/12
Y1 - 2025/12
N2 - This study investigated the effects of preparation temperature and usage period on the relaxation times and apparent diffusion coefficients (ADC) of sucrose phantoms to enhance imaging reliability. Phantoms were prepared using 10% sucrose solutions at 20, 50, and 80 °C. T1 and T2 relaxation times and ADC were monitored over 80 days using magnetic resonance imaging on a 1.5 T system. T2 relaxation time in 50 °C solutions increased from 245.5 to 1579 ms, while 80 °C solutions showed the highest stability (coefficient of variation ≈ 1.8%). T1 relaxation time changes were minimal, and ADC decreased at an average rate of 2.19 × 10−6 mm2/s per day. Bacteria were observed in the sucrose solution, and higher protein concentrations were strongly correlated with decreased 1/T2. In conclusion, sucrose phantoms exhibited temperature-dependent stability, with 80 °C preparations providing the most reliable T2 relaxation time.
AB - This study investigated the effects of preparation temperature and usage period on the relaxation times and apparent diffusion coefficients (ADC) of sucrose phantoms to enhance imaging reliability. Phantoms were prepared using 10% sucrose solutions at 20, 50, and 80 °C. T1 and T2 relaxation times and ADC were monitored over 80 days using magnetic resonance imaging on a 1.5 T system. T2 relaxation time in 50 °C solutions increased from 245.5 to 1579 ms, while 80 °C solutions showed the highest stability (coefficient of variation ≈ 1.8%). T1 relaxation time changes were minimal, and ADC decreased at an average rate of 2.19 × 10−6 mm2/s per day. Bacteria were observed in the sucrose solution, and higher protein concentrations were strongly correlated with decreased 1/T2. In conclusion, sucrose phantoms exhibited temperature-dependent stability, with 80 °C preparations providing the most reliable T2 relaxation time.
KW - Magnetic resonance imaging
KW - Phantom
KW - Relaxation time
KW - Sucrose
KW - Temperature
KW - Temporal change
UR - https://www.scopus.com/pages/publications/105012178358
UR - https://www.scopus.com/pages/publications/105012178358#tab=citedBy
U2 - 10.1007/s12194-025-00940-z
DO - 10.1007/s12194-025-00940-z
M3 - Article
C2 - 40730745
AN - SCOPUS:105012178358
SN - 1865-0333
VL - 18
SP - 1283
EP - 1293
JO - Radiological Physics and Technology
JF - Radiological Physics and Technology
IS - 4
ER -