??????

???lumbar spondylolysisLS?????????????????????????????????X?CT??
?PHILIPS BACKY DIAGNOST500MA X??????GE?Lightspeed Pro16CT?????56?2mm3mm?????????Q??????
X??
2.2.1 ? L4????????L5??????????
2.2.2 ? ????????????????
2.2.3 ?? ????????35?45???????????j????????????
2.3 CT?2.3.1 ???CT 1???98????????????????????????????????????????????2??22???????????????????????
2.3.2 ??CT 1????:?????????2??:?????????????????????3???:??????????4?????:????????????????]???????
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