{
  "ptid_time": "068_S_0473_2008-05-08",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0473/2008-05-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 28,282 mm³, 26.6% below the reference mean. With a Z-score of -0.64 (26.2th percentile), this represents normal volume ; hippocampal volume measures 8,010 mm³, 6.0% above the reference mean. With a Z-score of 0.58 (72.0th percentile), this represents normal volume ; whole brain volume measures 1,098,010 mm³, 1.7% above the reference mean. With a Z-score of 0.22 (58.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,967 mm³, 3.3% below the reference mean. With a Z-score of -0.22 (41.3th percentile), this represents normal volume ; fusiform gyrus volume measures 18,255 mm³, 3.1% below the reference mean. With a Z-score of -0.26 (39.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 25,456 mm³, 19.3% above the reference mean. With a Z-score of 1.73 (95.9th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 74.6 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 9.0. Laboratory findings: Phosphorus: 2.60 (significant reduced). APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus) are within normal ranges, with the middle temporal gyrus showing moderate enlargement but no atrophy. The MMSE score of 30 is intact, and there are no cognitive complaints or functional impairments reported.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:48:35.787311"
}