保健 - 第108期 - page 31

31
健康話題
ࠦᅂ྅dவ၇ෂ୕จ່ɪٙ౷ஷ
X
ᇞٙϓ྅d
100
ϋ
Ըϓ
މ
ᔼኪ੬஝ൢᓙٙɓ၇ࠠ
˓
ضݬ
͜Їʦf
း၍
ܝ
Ըɛ
މࡁ
ə੽வ၇
X
࢛ᇞٙᅂ྅ʕᐏ՟ɛ᜗ष
ଣ༆࡚
א
͛ଣɪһεٙ༟ৃd೯׼əመνʔΝԉ
ܓ
ᙲᅂd࿁ˢኒ€ўຢ
א
ቝٙʷΥ
ي
dं᜗ഃٙ
ء
࢛d
X
࢛ᇞᓙᄴᙲᅂҦஔdШɛ᜗ଡ଼ᔌ൳
ێ
d੗
൳ܓ
ɽd
ঐ੄஗ชΈՑፃΈ࿇
א
ชΈᇭ˪ɪ
X
ᇞ൳ˇdΪϾኬ
ߧ
΢ᄴኜ֜ٙ੗
ܓ
஗૿ଌdҖϓᅼᇔٙྡ྅dʔঐ
ʱ፫΢၇ʔΝழଡ଼ᔌٙҷᜊdჃჃʔঐቇᏐତ˾ᔼ
ኪൢᓙٙც
fШɰ
ܝމ
Ը
CT
€
ၑዚᓙᄴધ౜Ҧ
ஔٙ೯׼ఢ֛əਿᓾf
X
࢛ᇞ
ၑዚᓙᄴધ౜
(X-Ray Computed Tomography)
Ҧஔdᔊ၈
CT
Ҧஔdঐਗ਼ɛ᜗lzٙኜ֜˸ͭ᜗ٙe
৷༆ؓ
ܓ
ٙҖόᜑͪ̈ԸdһॆྼήᜑͪϞᗫषᜊ
ٙ༉୚ઋ
ر
ձ௅Зdतй݊
໕މ
ᆯٙϘಂൢᓙ౤Զ
əࠠ
Աኽd
CT
ݟ
࿁ઃ٫ೌ೨߮eฦෆʃfΪϤ
੽̴ɓਪ˰ఱίᑗґɪ੻ՑəԘ஺ٙ౷ʿձપᄿd
஗Ⴉ
މ
ක௴əᔼኪൢᓙٙอ
ߏ
ʩd࿁̴ٙ೯׼ਂ̈
্ᘠٙ
ي
ଣኪ࢕߅৵дձʈ೻ࢪ
ݳ
౶ിဧᅃΪ
Ϥᐏ੻
1979
ϋፕԎဧ͛ଣኪ
א
ᔼኪᆤf
1969
ϋ
CT
ਪ˰ʘ
ڋ
ˢ༰d຅
ۃ
CT
ݟ
ၾൢᓙҦஔ
ᐏ੻ə
ܘ
ɽٙ೯࢝fᎇഹତ˾ᑮૅ
CT
ձ൴৷஺
CT
ٙ
ҁഛd৷ʱ፫
CT
Ҧஔe
CT
А၍ிᅂe
CT
ɧၪྡ྅
ܔ
eਗ࿒
CT
ધ౜Ҧஔe৶੗
ܓ
಻ඎഃɓҭ
CT
ધ౜
ٙอҦஔίᑗґɪᐏ੻ᄿ
ع
ٙᏐ͜ձႩ̙f̴ίː
ᛔձА၍शषٙൢᓙdኜ֜໕ᆯձช
ݑ
शषٙൢᓙd
໕ᆯʱಂձ˾ᑽ׌शषഃ˙ࠦ͟׵Չ৷ሯඎٙྡ྅
Ͼᄿ
՟ع
˾əෂ୕ٙ
X
ᇞᏨ
ݟ
d
ޟ
Їෂ୕ٙ຾ͤА၍
ிᅂᏨ
ݟ
fᑗґᔼ͛࠾п
CT
࿁षɛٙशषආБൢᓙ
൳Ը൳౷ཁf
ޟ
Їί
CT
ྡ྅ٙˏኬɨආБ΢၇ኜ֜
शषٙ߈Ր
ݺ
Ꮸe᜗lzጐ૰eኜ֜А໕
א
ᑓ໕ٙ຾
ͤ߈Րˏ
ݴ
ה
CT
ˏኬɨٙʧɝ
ط
ᐕf
ה
Ϟவ
ԬආӉேɽɽ౤৷əɛ
࿁शषႩᗆeൢᓙձ
ط
ٙঐɢd
މ
ᔼኪٙ೯࢝ձɛ
਄ੰ˥̻ٙ౤৷Ъ̈
ܘ
ɽ্ٙᘠf
CT濫用:最嚴重的醫源性放射損傷
CT
Ϟп׵ᔼ͛Ꮸ̈੽ᐖसՑഥഐͩᇍఖlzٙ΂Оष
ᜊf್Ͼᔼ͛
஼နක֐ᗫ
ء
CT
ધ౜ٙτΌ׌ਪᕚd
तй݊ίᐖसΚᎈ׌ᄣ̋˙ࠦfɓϣ
CT
ધ౜̍ўٙ
࢛ᇞኒඎ޴຅׵
500
ϣ౷ஷ
X
ᇞ๫࢛fν
؈
ᔼ͛ᜫЫ
א
Ыٙ܀ɿਂɓϣ
CT
ધ౜dЫᒔซਂୋɚϣ෗k
޼Ӻɛࡰ
ڌ
ͪd௰
ڐ
ٙՇධ޼Ӻഐ
މ؈
εᄴ
CT
ધ౜
ᄣ̋ᐖसࠬᎈ࿧ᚤəᙆᙒfίୋɓධ޼ӺʕdНᖯ
㛪༺ձശସ཭ᔼ৫ٙlz߅ᔼ͛੽
1243
Τᎇዚܿ፯ٙ
षɛᅂ྅༟ࣘ㛪൙Пəཀ̘
5
ϋʕ̻ѩӊ
षɛ
ה
աٙ፧࢛ඎfး၍
CT
ધ౜ࣛ௰ɽٙ፧࢛๕dՉ˼࢛
ᇞԸ๕ᒔܼ̍
X
ᇞձԪ໗◞ཪᙲ˪fί
ߕ
਷ᑘ፬ٙ
ܢ
ൢᔼኪึϋึɪʮбٙ޼Ӻഐ
؈
˿ɛʔτj̻ѩ
ӊ
षɛટա
45mSv
࢛ٙᇞඎ€ᅺ๟ٙ঍௅׳࢛ᇞᙑ
׳
0.02 mSv
࢛ᇞඎf
12%
ٙषɛʊ຾εቊաəՇ࠴
࢛ٙᇞඎ
–100 mSv
d
ޟ
Їһεf༈޼ӺٙୋɓЪ٫e
ෳᚆεήਜᔼᐕʕː࠯ࢩᔼਕ֜
Timothy Bullard
Ⴍj
˜Ң
ٙͦٙ݊ᜫɛ
จᗆՑ˼
͍ίቊաɽඎϞ࢔
࢛ᇞdҎૐɛ
ঐቇ຅Ꮠ͜வԬҦஔf™
˜ቇ຅™
੬ڢ
ᗫᒟdˈՉ݊೯
ڌ
ߐอ
ߵ
ࣸᚆᔼኪᕏ
Ⴆ‘ɪٙΫᚥ׌˖௝
ڌ
׼Ό
ߕ
ʊ຾݄Бٙ
CT
ધ౜ʕϞ
ڐ
ɧʱʘɓٙધ౜݊ʔ̀
ٙf˖ʕܸ̈dί
ߕ
਷ӊϋϞ
2000
ຬϓϋɛձε׵
100
ຬՅഁ
ה
ቊաٙ፧
࢛݊Ӛ̀
ٙfЪ٫Ⴉ
މ
መνઃ٫ɽஈ˙ձʔც
ٙ
CT
ધ౜ഃਪᕚஷཀᔼઃʘගٙ๖ஷᏐঐһλή༆
Ӕf༈ၝ
ٙ˴
Ъ٫ࡩ
ˢԭɽኪᔼኪʕː׳࢛
ኪ޼Ӻʕː˴΂
David Brenner
މ
d˜ࠠል
CT
ધ౜݊
ঞᔬ̙३ٙd૩ೌ࣬ኽf™ɓධၝ
ڌࠑ
׼dટաཀ
CT
ધ౜ٙषɛʕd
30%
ٙषɛ຾዇ཀɧϣધ౜d
7%
ٙ
षɛ຾዇ཀʞϣ
א
஢һεd
4%
ٙषɛ຾዇ཀɘϣʘ
εfவᒔ
ᓥໆ׵ᔼ͛
˚ूᄣ̋ٙ
ڭ
ᚐ׌ᔼᐕf
Bullard
Ⴍj˜ν
؈
ᔼ͛፲ဍə
ݔ
Ԭତ൥dԟ˼ఱ݊Ϟ
ཀ፹ٙdவ݊ᔼᐕٙਿ͉ࡡ
ۆ
f™˼ᒔܸ̈d
CT
ધ౜
ʔึͭӱତϞ࢔ਓЪ͜d˜Ҟ஺eೌ೨dᜫषɛတ
จϾᓥf™
๟ᆽήႭdεˇ࢛ᇞඎʑၑεճk
CT
ધ౜੽ɪ
˰
ߏ
80
ϋ˾ৎᄿ
ع
Դ͜dϾ࢛ᇞˏ೯ٙᐖसɽ
ߒ
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