{
  "ptid_time": "051_S_1040_2007-11-01",
  "img_path": "/data/qiuhui/data/adni/images/051_S_1040/2007-11-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,005 mm³, 3.9% below the reference mean. With a Z-score of -0.09 (46.3th percentile), this represents normal volume ; hippocampal volume measures 7,358 mm³, 2.7% below the reference mean. With a Z-score of -0.26 (39.8th percentile), this represents normal volume ; whole brain volume measures 1,089,210 mm³, 0.9% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume ; entorhinal cortex volume measures 3,566 mm³, 13.0% below the reference mean. With a Z-score of -0.88 (18.8th percentile), this represents normal volume ; fusiform gyrus volume measures 17,733 mm³, 5.9% below the reference mean. With a Z-score of -0.50 (30.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,113 mm³, 8.3% above the reference mean. With a Z-score of 0.75 (77.3th percentile), this represents normal volume . ",
  "text_data": "Age is 72.4 years. Gender is Male. Education: 11 years. MMSE: 29.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., entorhinal cortex is 13% below the mean but still within normal Z-score range). The MMSE score of 29 is normal, and the absence of APOE4 alleles reduces genetic risk. No significant atrophy or cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:31:17.784377"
}