32
健康話題
20
ϋٙ೯࢝ච
ݬ
d
CT
ધၾᐖसٙ
ڗ
ಂӺʥίආ
БʕfШ݊߅ኪʊཫ̈͊Ըੰٙᒯઃf
Ӻɛࡰ೯ତࡡɿᅁᖑ
ܝގ
ٙ
25000
Τ˚͉ա٫d˼
הࡁ
ቊա࢛ٙᇞඎഃΝՇϣ
CT
ધඎfਿவԬ
Ӻd
ߕ
ۜձᖹۜ၍ଣ҅
FDA
П
ࠇ
ɓ
ࡈ
ϓϋ
ɛɓ͛ʕϞ̙ঐ
CT
ધʕᐏٙ፧࢛Ͼ
Ⴐ೯ᐖसٙଟ݊
1
j
2000
fһᐲጞٙ݊d
ՅഁٙΚᎈһ৷f
ၾϓϋɛˢdՅഁ
࿁࢛ᇞһ
މ
ઽชfʔ
සΪ
މ
ՅഁϞһ
ڗ
ٙ
͛նմಂdᒔΪ
މ
˼
ࡁ
ٙ
ߤ
ʱһҞd
˼
ࡁ
ٙ
DNA
һ࢙ա
Ցฦfɓϣ
CT
ધኬ
ߧ
Յഁ೯͛
ߧ
ϥ໕ᆯٙࠬ
ᎈ৷༺
1/500
fᒱ್อۨᄃኜঐԴՅഁձ̼Յٙ፧
࢛ኒඎಯˇ
50%
dШ
2001
ϋ೯
ڌ
ί
ߕ
׳࢛ኪᕏႦ
ٙɓᇐ˖ᜑͪd׳࢛Ҧஔɛࡰ
ܘ
ˇึආБவ၇ሜ
f
ߕ
׳࢛Ҧࢪึ೯Ԋɛ
Mi che l e Scog l i e t t i
ႭjҷᜊҦஔΪ९Ԩʔᗭd̙ঐϞԬҦஔɛࡰӚϞ
ટաཀሜண௪ٙdʔٝ༸
ܣ
䟕Դ͜d
א
݊ʈ
Ъ˄ώd͵
א
̥݊ᖀϾʊf
CT是如何對身體產生傷害的?
Ң
ࡁ
ίԮ͜
CT
Ꮸ
੭ݟ
Ը
ک
ઠeᆽٙΝࣛdɰ̀
ࣛՍᙆઑ
CT
፧࢛
੭ה
Ըٙ˚ᒈ̋ɽٙΚf
CT
࿁ɛ
ٙΚ˴
ࠅ
݊ԸІ
X
ᇞପ͛ٙཥᕎ፧࢛fவ၇ཥᕎ
፧࢛ၾɛ
ߤ
e૰ഃ
ي
ሯପ͛ʝЪ͜dኬ
ߧ
ي
ሯٙࡡɿ
א
ʱɿཥᕎdΪϾ̙˸ٜટॎᕸዚlz
ݔ
Ԭɽʱɿഐd̙Դஐͣʱɿᗡᓙeࣨጟࣨა
୭א
ःࣨጟࣨაٙᓙeॎᕸɓԬ࿁
ي
ሯ˾ᑽϞࠠ
ࠅ
จ່ٙ㺛ഃd
ޟ
Ї̙ٜટฦෆ
ߤ
ഐfཥᕎ፧
࢛̙˸ஷཀཥᕎዚlzᄿ
ع
πίٙ˥ʱɿdҖϓɓ
ԬІ͟ਿdஷཀவԬІ͟ਿٙගટЪ͜Ըฦෆዚf
電離輻射對人體損傷的發生有兩種:
ɓ݊
ڢ
ᎇዚ೯͛ٙฦෆd˴
ࠅ
ձኒඎձଡ଼ᔌٙઽช
ܓ
ᗫf࢛ᇞ࿁ዚٙኜ֜ଡ଼ᔌٙᅂᚤʱʔΝ
ܓ
d
ɓছ̙ʱ
ܓ৷މ
ઽชeʕ
ܓ
ઽชeჀ
ܓ
ઽชձʔઽ
ชଡ଼ᔌf৷
ܓ
ઽชଡ଼ᔌjˋଡ଼ᔌˋ
ߤ
ձ̼ຯ
ٙˋ
ߤ
i໗ၚࡡ
ߤ
eф
ߤ
i
ߣߝ
ଡ଼ᔌi
໗໗
ߤ
i৶
ଡ଼ᔌ̼ຯ
ߎ
ߤ
e
ߤ
ձ̶ࣨ
ߤ
i
໑ߞ
ɪͤfʕ
ܓ
ЇჀ
ܓ
ઽชٙଡ଼ᔌjชᙂ
ኜ֜ԉᇫe౺ًe
ഐᇫilzͤ
ߤ
˴
ࠅ
݊А၍eАᘨձ
ˋ၍lzͤ
ߤ
fʔઽ
ชଡ଼ᔌjЄЂeழ৶
ഐᇕଡ଼ᔌf
፧࢛Ъ͜ዚʘ
ܝ
dᎇաଡ଼ᔌٙઽชձ࢛
ଢ଼ጐٙኒඎʔΝˏৎʱɿ˥̻e
ߤ
˥̻ٙᜊʷՉ
ପ͛ٙᘱ೯Ъ͜d௰ኬ
ߧ
ኜ֜˥̻ٙღᖟɗЇ
˥̻ٙʔΝ
ܓ
ᜊʷd
ک
̙̈ତ׳࢛ฦෆּٙ
ձसًfν׳࢛ͤᇮฦෆe༰ɽኒඎٙཥᕎ፧࢛
ኬ
೯୭ߧ
eͣАଢɨࠥd౺ًฦෆͣlzღत
й݊࿁࢛ᇞઽชٙlzʱ
ؤ
ኜ࢛̙֜ঐኬ
ߧ
lzʱ
ؤ
̌ঐٙღᖟfཥᕎ፧࢛࿁͛ಟ
ߤ
ٙฦෆٙ
؈ܝ
ᘌ
ࠠd࿁ф੫
א
❆ɬ࢛ٙ
ۆ
ᅂᚤա
ࡈ
ٙ
ܝ
˾Ͼ
Їຆ
ߣ
d
ޟ
Ї፲ෂࣖᏐfᘌࠠཀඎٙ፧࢛ɰึிϓ
ɛࡰϥɳf
ୋɚ݊ᎇዚࣖᏐfఊ
אࡈ
ʃඎ
ߤ
աՑ፧࢛ฦෆ˴
ࠅ
݊
ݑ
ЍຆᜊeਿΪ߉ᜊഃ̙̈ତᎇዚࣖᏐd
̙ঐႰ೯ెशषdνᐖसeͣАषഃf
ᎇഹ
CT
ધҦஔٙᄿ
ع
౷ʿdอٙધҦஔٙᏐ͜d
˸ʿԴ͜˙
ک
ٙഐ
؈
ኬ
ߧ
ԫྼɪ
CT
Ꮸ
ݟ
іϗኒඎ౷
ཁᄣ̋fყ፧࢛ԣᚐ։ࡰึίɓධ
1989
ϋٙሜ
ݟ
ᜑͪdး၍
CT
Ꮸ
ݟ
සЦ
ה
ϞᏨ
ݟ
ٙ
2%
dϾ࿁ʮ
ൢᓙϓ྅ٙટϗኒඎd
CT
ۍ
Ц
20%
̸̛fϾίᎇ
ܝ
ٙ࿁
ߵ
ٙሜ
ڌݟ
d፧࢛ટաኒඎ̙ঐึɪʺ
Ց
40%
fί
ߕ
d
CT
ٙટաኒඎʊЦՑ
67%
fவ၇