{
  "ptid_time": "128_S_0200_2018-11-09",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0200/2018-11-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,466 mm³, 44.3% below the reference mean. With a Z-score of -1.06 (14.4th percentile), this represents mild atrophy; hippocampal volume measures 8,299 mm³, 9.8% above the reference mean. With a Z-score of 0.95 (83.0th percentile), this represents normal volume ; whole brain volume measures 1,164,580 mm³, 7.9% above the reference mean. With a Z-score of 1.02 (84.7th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,335 mm³, 5.7% above the reference mean. With a Z-score of 0.39 (65.1th percentile), this represents normal volume ; fusiform gyrus volume measures 21,876 mm³, 16.1% above the reference mean. With a Z-score of 1.37 (91.5th percentile), this represents mild enlargement; middle temporal gyrus volume measures 22,028 mm³, 3.2% above the reference mean. With a Z-score of 0.29 (61.4th percentile), this represents normal volume . ",
  "text_data": "Age is 73.9 years. Gender is Male. Education: 16 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild ventricular atrophy but otherwise normal or even enlarged volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE 29, MoCA 25) are within normal limits for age, and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:36:48.156539"
}