{
  "ptid_time": "099_S_0111_2006-08-18",
  "img_path": "/data/qiuhui/data/adni/images/099_S_0111/2006-08-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,159 mm³, 68.0% above the reference mean. With a Z-score of 1.56 (94.0th percentile), this represents moderate enlargement; hippocampal volume measures 5,577 mm³, 21.6% below the reference mean. With a Z-score of -1.98 (2.4th percentile), this represents moderate atrophy; whole brain volume measures 927,890 mm³, 4.8% below the reference mean. With a Z-score of -0.60 (27.3th percentile), this represents normal volume ; entorhinal cortex volume measures 2,860 mm³, 22.1% below the reference mean. With a Z-score of -1.36 (8.7th percentile), this represents mild atrophy; fusiform gyrus volume measures 13,679 mm³, 19.6% below the reference mean. With a Z-score of -1.78 (3.7th percentile), this represents moderate atrophy; middle temporal gyrus volume measures 17,755 mm³, 7.4% below the reference mean. With a Z-score of -0.64 (26.1th percentile), this represents normal volume . ",
  "text_data": "Age is 76.3 years. Gender is Female. Education: 16 years. MMSE: 16.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows significant hippocampal atrophy (Z-score -1.98, 2.4th percentile) and moderate ventricular enlargement (Z-score 1.56, 94th percentile), both consistent with Alzheimer's pathology. The MMSE score of 16 indicates severe cognitive impairment, aligning with dementia.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T10:53:32.800682"
}