| Project/Area Number |
21791826
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Pathobiological dentistry/Dental radiology
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| Research Institution | Nagasaki University |
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Principal Investigator |
ICHIKAWA Yoko Nagasaki University, 病院, 助教 (90380857)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 歯科放射線診断学 / magnetic resonance imaging / MR neurography / 顔面神経 / 耳下腺 / 解剖 / 唾液腺 / 唾液腺歯科放射線診断 / 耳下腺腫瘍 / magetic resonance imaging / MR neuroraphy |
|---|
| Research Abstract |
As a result of having tried the depiction of the facial nerve by several kinds of sequences with microscopy coil. By T1-weighted Fast Field Echo(T1FFE) and Balanced Turbo Field Echo (B-TFE) sequence and multi planar reformation image, we were able to depict intraparotid facial nerve.
We diagnosed the case with deep layer, when there was a parotid gland tumor inward from the most outside of the facial nerve, or the distance with the nerve was under minimum period of 0.5-mm or a tumor contacted with temporal bone in T1FFE and Balanced TFE sequence (Direct identification method). With Direct identification method, Sencitivity, Specificity, Accuracy showed 71.4%, 88.0%, 80.0%. In this study, it was suggested that Direct identification method using T1FFE and Balanced TFE is useful to determine parotid gland tumor exists in deep layer or not.
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