| Project/Area Number |
05670769
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Radiation science
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| Research Institution | Shinshu University |
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Principal Investigator |
KIYONO Kunihiro Shinshu University School of Medicine, Instructor, 医学部・付属病院, 講師 (60020757)
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| Co-Investigator(Kenkyū-buntansha) |
KAWAI Takashi Shinshu University School of Medicine, Assistant, 医学部, 助手
IMAI Yutaka Shinshu University School of Medicine, Instructor, 医学部・付属病院, 講師 (30020902)
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| Project Period (FY) |
1993 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1994: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1993: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | X-ray anatomy of hilum / Hilar lymph node / MRI / 肺門部形態 |
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| Research Abstract |
The MR images of the resected human lungs were correlated with patho-mor-phologic findings of the specimens to facilitate inter-pretation of the pulmonary hilum, specifically hilar lymph nodes. Normal hilar lymph nodes were demonstrated as low signal intensity structures on T1-, T2-and proton-density-weighted images. The walls of the pulmonary vessels and bronchi were shown as linear structures of relatively low intensity, with fatty tissue of high intensity surrounding these structures. Among these low signal intensity hilar lymph nodes were shown resulting from anthracosis, which were similar to those by fibrotic foci. The enlarged hilar lymph nodes could be differentiated from walls of bronchi and pulmonary arteries and from normal nodes because the signal intensity of the mass of nodes was lower than that of surrounding soft tissues.
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