2004.09.04

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醫學造影可讓醫生直接看到傷處以及病灶，而無需仰賴身體外部檢查或進行探查性手術。目前已有好些斷層掃描技術受到廣泛應用，但不論哪一種方法，病人都是躺在一張床上，送入一個甜甜圈狀的機器當中。機身會從受試者的身體取得許多二維影像切片，然後再由電腦軟體將其組合成三維的圖形。 電腦斷層掃描（CT）是利用X射線

影像來源／GRIFF WASON (illustrations) ; ZEPHYR/SCIENCE PHOTO LIBRARY (MRI cross sections) ; REPRINTED FROM breastcancer.org AND; IMAGE COURTESY OF NATIONAL MEDICAL IMAGING, PHILADELPHIA (PET scan) ; P. MARAZZI/SPL (MRI scan) ; DU CANE MEDICAL IMAGING/SPL (CT scan)

影像來源／GRIFF WASON (illustrations) ; ZEPHYR/SCIENCE PHOTO LIBRARY (MRI cross sections) ; REPRINTED FROM breastcancer.org AND; IMAGE COURTESY OF NATIONAL MEDICAL IMAGING, PHILADELPHIA (PET scan) ; P. MARAZZI/SPL (MRI scan) ; DU CANE MEDICAL IMAGING/SPL (CT scan)

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