Abstract
Purpose: During acquisition of rapid high resolution (HR) T2 weighted (T2W) liver magnetic resonance (MR) images using a 1.0-Tesla (T) scanner, the liver is segmented into odd and even sections that are acquired at two different times using the multi-breath-hold (MBH) strategy. Misalignment between the two breath-hold (B-H) images may result in the occurrence of a blind area and a decrease in diagnostic accuracy. Here, a functional residual capacity (FRC) B-H method was developed to overcome this problem. Material and methods: Twenty-five volunteers were enrolled. The sagittal images were reconstructed from whole liver transverse images. The misalignments of the abdominal wall were measured in the anterior-posterior (AP) direction and were compared between each two B-H phases, maximum inspiration, maximum expiration, voluntary expiration and FRC using one-way repeated measures ANOVA. Differences between groups were compared using the t-test for multi-group comparisons. In addition, qualitative analysis of misalignment was performed between VE and FRC in 52 clinical patients and the χ 2 test was performed. Results: Misalignment of the liver position using FRC was significantly smaller than the other B-H methods (p <0.05). Significant differences between the VE B-H and FRC B-H were also observed in the qualitative analysis (p <0.05).
| Original language | English |
|---|---|
| Title of host publication | IFMBE Proceedings |
| Pages | 1598-1602 |
| Number of pages | 5 |
| Volume | 22 |
| DOIs | |
| Publication status | Published - 2008 |
| Event | 4th European Conference of the International Federation for Medical and Biological Engineering, ECIFMBE 2008 - Antwerp, Belgium Duration: Nov 23 2008 → Nov 27 2008 |
Other
| Other | 4th European Conference of the International Federation for Medical and Biological Engineering, ECIFMBE 2008 |
|---|---|
| Country | Belgium |
| City | Antwerp |
| Period | 11/23/08 → 11/27/08 |
Fingerprint
Keywords
- Capacity (FRC)
- Functional Residual
- High-resolution
- Reproducibility
- T2 weighted MR imaging
ASJC Scopus subject areas
- Biomedical Engineering
- Bioengineering
Cite this
T2 weighted liver Magnetic Resonance imaging using functional residual capacity breath-hold with multi breath-hold. / Tabuchi, Akihiko; Katsuda, T.; Gotanda, R.; Gotanda, T.; Yamamoto, K.; Mitani, M.; Takeda, Yoshihiro.
IFMBE Proceedings. Vol. 22 2008. p. 1598-1602.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - T2 weighted liver Magnetic Resonance imaging using functional residual capacity breath-hold with multi breath-hold
AU - Tabuchi, Akihiko
AU - Katsuda, T.
AU - Gotanda, R.
AU - Gotanda, T.
AU - Yamamoto, K.
AU - Mitani, M.
AU - Takeda, Yoshihiro
PY - 2008
Y1 - 2008
N2 - Purpose: During acquisition of rapid high resolution (HR) T2 weighted (T2W) liver magnetic resonance (MR) images using a 1.0-Tesla (T) scanner, the liver is segmented into odd and even sections that are acquired at two different times using the multi-breath-hold (MBH) strategy. Misalignment between the two breath-hold (B-H) images may result in the occurrence of a blind area and a decrease in diagnostic accuracy. Here, a functional residual capacity (FRC) B-H method was developed to overcome this problem. Material and methods: Twenty-five volunteers were enrolled. The sagittal images were reconstructed from whole liver transverse images. The misalignments of the abdominal wall were measured in the anterior-posterior (AP) direction and were compared between each two B-H phases, maximum inspiration, maximum expiration, voluntary expiration and FRC using one-way repeated measures ANOVA. Differences between groups were compared using the t-test for multi-group comparisons. In addition, qualitative analysis of misalignment was performed between VE and FRC in 52 clinical patients and the χ 2 test was performed. Results: Misalignment of the liver position using FRC was significantly smaller than the other B-H methods (p <0.05). Significant differences between the VE B-H and FRC B-H were also observed in the qualitative analysis (p <0.05).
AB - Purpose: During acquisition of rapid high resolution (HR) T2 weighted (T2W) liver magnetic resonance (MR) images using a 1.0-Tesla (T) scanner, the liver is segmented into odd and even sections that are acquired at two different times using the multi-breath-hold (MBH) strategy. Misalignment between the two breath-hold (B-H) images may result in the occurrence of a blind area and a decrease in diagnostic accuracy. Here, a functional residual capacity (FRC) B-H method was developed to overcome this problem. Material and methods: Twenty-five volunteers were enrolled. The sagittal images were reconstructed from whole liver transverse images. The misalignments of the abdominal wall were measured in the anterior-posterior (AP) direction and were compared between each two B-H phases, maximum inspiration, maximum expiration, voluntary expiration and FRC using one-way repeated measures ANOVA. Differences between groups were compared using the t-test for multi-group comparisons. In addition, qualitative analysis of misalignment was performed between VE and FRC in 52 clinical patients and the χ 2 test was performed. Results: Misalignment of the liver position using FRC was significantly smaller than the other B-H methods (p <0.05). Significant differences between the VE B-H and FRC B-H were also observed in the qualitative analysis (p <0.05).
KW - Capacity (FRC)
KW - Functional Residual
KW - High-resolution
KW - Reproducibility
KW - T2 weighted MR imaging
UR - http://www.scopus.com/inward/record.url?scp=70350633088&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70350633088&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-89208-3_380
DO - 10.1007/978-3-540-89208-3_380
M3 - Conference contribution
AN - SCOPUS:70350633088
SN - 9783540892076
VL - 22
SP - 1598
EP - 1602
BT - IFMBE Proceedings
ER -