{
  "ptid_time": "123_S_4780_2013-07-31",
  "img_path": "/data/qiuhui/data/adni/images/123_S_4780/2013-07-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,152 mm³, 14.6% above the reference mean. With a Z-score of 0.33 (63.1th percentile), this represents normal volume ; hippocampal volume measures 7,152 mm³, 0.5% above the reference mean. With a Z-score of 0.05 (51.9th percentile), this represents normal volume ; whole brain volume measures 970,906 mm³, 0.4% below the reference mean. With a Z-score of -0.05 (48.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,170 mm³, 13.5% above the reference mean. With a Z-score of 0.83 (79.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,025 mm³, 0.1% above the reference mean. With a Z-score of 0.01 (50.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,971 mm³, 6.3% below the reference mean. With a Z-score of -0.54 (29.4th percentile), this represents normal volume . ",
  "text_data": "Age is 71.2 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 30, MoCA 27) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T12:33:41.210905"
}