[Ultrafast MR sialography: comparison of two coil systems including an alternative surface coil]
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[Ultrafast MR sialography: comparison of two coil systems including an alternative surface coil]. / Weber, Christoph; Cramer, M C; Dichtl, Daniela; Weiss, Florian; Petersen, Kay Uwe; Reitmeier, Fabian; Jaehne, Michael; Adam, Gerhard; Habermann, Christian.
In: ROFO-FORTSCHR RONTG, Vol. 180, No. 11, 11, 2008, p. 977-982.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - [Ultrafast MR sialography: comparison of two coil systems including an alternative surface coil]
AU - Weber, Christoph
AU - Cramer, M C
AU - Dichtl, Daniela
AU - Weiss, Florian
AU - Petersen, Kay Uwe
AU - Reitmeier, Fabian
AU - Jaehne, Michael
AU - Adam, Gerhard
AU - Habermann, Christian
PY - 2008
Y1 - 2008
N2 - PURPOSE: To compare the visualization of salivary ducts by ultrafast magnetic resonance sialography (MR sialography) using an alternative surface coil and a conventional head-neck coil. MATERIALS AND METHODS: In 11 healthy volunteers, ultrafast MR sialography (single shot turbo spin echo; acquisition time, 2.8 s) was performed before and after oral application of a sialogogue. Each subject received examinations with both a bilateral surface coil (SC) and a conventional head-neck coil (HNC). The depiction of parotideal and submandibular duct systems was graded from 1 to 5 (5 = poor) by four independent radiologists. ANOVA served for statistical analysis of duct rankings, and interobserver variability was determined by Intraclass Correlation Coefficient (ICC). RESULTS: With an excellent ICC of 0.96, both coil systems offered symmetric visualization of salivary ducts, and the image quality increased after oral application of sialogogue (p <0.001). In total, the overall rating was worse for SC than for HNC (2.13 +/- 1.24 vs. 1.45 +/- 0.65, p <0.001). SC was especially inferior in depiction of submandibular and extraglandular duct components compared to HNC (p <0.001). CONCLUSION: Most notably due to the reduced visualization of extraglandular and submandibular ducts, the specific surface coil used in this study was inferior in image quality and does not constitute a reasonable alternative to conventional coil systems.
AB - PURPOSE: To compare the visualization of salivary ducts by ultrafast magnetic resonance sialography (MR sialography) using an alternative surface coil and a conventional head-neck coil. MATERIALS AND METHODS: In 11 healthy volunteers, ultrafast MR sialography (single shot turbo spin echo; acquisition time, 2.8 s) was performed before and after oral application of a sialogogue. Each subject received examinations with both a bilateral surface coil (SC) and a conventional head-neck coil (HNC). The depiction of parotideal and submandibular duct systems was graded from 1 to 5 (5 = poor) by four independent radiologists. ANOVA served for statistical analysis of duct rankings, and interobserver variability was determined by Intraclass Correlation Coefficient (ICC). RESULTS: With an excellent ICC of 0.96, both coil systems offered symmetric visualization of salivary ducts, and the image quality increased after oral application of sialogogue (p <0.001). In total, the overall rating was worse for SC than for HNC (2.13 +/- 1.24 vs. 1.45 +/- 0.65, p <0.001). SC was especially inferior in depiction of submandibular and extraglandular duct components compared to HNC (p <0.001). CONCLUSION: Most notably due to the reduced visualization of extraglandular and submandibular ducts, the specific surface coil used in this study was inferior in image quality and does not constitute a reasonable alternative to conventional coil systems.
M3 - SCORING: Zeitschriftenaufsatz
VL - 180
SP - 977
EP - 982
JO - ROFO-FORTSCHR RONTG
JF - ROFO-FORTSCHR RONTG
SN - 1438-9029
IS - 11
M1 - 11
ER -
