| Project/Area Number |
08407061
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
病態科学系歯学(含放射線系歯学)
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| Research Institution | TSURUMI UNIVERSITY |
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Principal Investigator |
YAMAMOTO Akira (1998) TSURUMI UNIVERSITY,SCHOOL OF DENTAL MEDICINE,PROFESSER, 歯学部, 教授 (80065341)
山本 昭 (1996-1997) 鶴見大学, 歯学部, 教授 (80064351)
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| Co-Investigator(Kenkyū-buntansha) |
IGARASHI Chinami TSURUMI UNIVERSITY,SCHOOL OF DENTAL MEDICINE,ASSISTANT, 歯学部, 助手 (50288122)
YUASA Masao TSURUMI UNIVERSITY,SCHOOL OF DENTAL MEDICINE,ASSISTANT, 歯学部, 助手 (20230609)
IMANAKA Masahiro TSURUMI UNIVERSITY,SCHOOL OF DENTAL MEDICINE,ASSISTANT, 歯学部, 助手 (60232609)
MORITA Satsuki TSURUMI UNIVERSITY,SCHOOL OF DENTAL MEDICINE,ASSISTANT, 歯学部, 助手 (50175056)
KOBAYASHI Kaoru TSURUMI UNIVERSITY,SCHOOL OF DENTAL MEDICINE,ASSOCIATE PROFESSER, 歯学部, 助教授 (50139614)
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| Project Period (FY) |
1996 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥21,500,000 (Direct Cost: ¥21,500,000)
Fiscal Year 1998: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1997: ¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1996: ¥15,400,000 (Direct Cost: ¥15,400,000)
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| Keywords | RADIOGRAPHIC UNIT / ROTATIONAL PANORAMIC RADIOGRAPHY / EXPOSURE TIME / FAST SCAN / ELDERLY PATIENT / HANDICAPPED PATIENT |
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| Research Abstract |
Generally the exposure time of rotational panoramic radiography varies from 12 to 20 seconds. In some of the children, the handicapped and the elderly patients, the rotational panoramic radiography may be contraindicated ; such cases include spastics, patients with hiccups, and those who have difficulty in remaining still during a long exposure time. And some of the patients feel fear when faced with the heavy-looking film holder surrounding their face. However, this full mouth radiographic survey plays a key role in management of these patients. We have developed a fast scanning rotational panoramic radiographic unit with longer patient-film distance aimed at less discomfort for these patients during the exposure.
Basic design of the unit
1. The exposure time is less than 5 seconds
2. The source-patient-film distance is utmost in the practice.
3. The emergency stop mechanism is needed.
Specifications of the unit
Exposure time ..........................2.5/1.3 seconds (bilateral/unilateral)
Rotation time ...........................3.0/1.5 seconds (bilateral/unilateral)
Source-film distance ....................................................725mm
2nd slit width ............................................................5mm
Positioning of the patient ................................seated (or standing)
Emergency stop mechanism .............................sensor on the film holder
Screen/film .................................................HR-12/S・HR-A(Fuji)
Manufactured by ............................................Asahi roentgen Ind.
Distributed by .............................................Asahi roentgen Ind.
We have developed a fast scanning rotational panoramic radiographic unit. It consideration of the radiographic examination of the patients who have difficulty in remaining still during a longer exposure, this unit is expected to bring us quality improvement in the patient management.
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