{
  "ptid_time": "141_S_2333_2012-04-28",
  "img_path": "/data/qiuhui/data/adni/images/141_S_2333/2012-04-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,671 mm³, 1.2% below the reference mean. With a Z-score of -0.03 (48.9th percentile), this represents normal volume ; hippocampal volume measures 7,059 mm³, 12.1% below the reference mean. With a Z-score of -1.21 (11.4th percentile), this represents mild atrophy; whole brain volume measures 1,073,500 mm³, 5.4% below the reference mean. With a Z-score of -0.76 (22.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,899 mm³, 8.5% below the reference mean. With a Z-score of -0.59 (27.7th percentile), this represents normal volume ; fusiform gyrus volume measures 20,966 mm³, 5.3% above the reference mean. With a Z-score of 0.44 (67.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,789 mm³, 20.6% below the reference mean. With a Z-score of -1.70 (4.5th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 68.0 years. Gender is Male. Education: 12 years. MMSE: 28.0. MoCA: 24.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows mild atrophy (Z-score -1.21, 11.4th percentile), and the middle temporal gyrus shows moderate atrophy (Z-score -1.70, 4.5th percentile), which are concerning for early neurodegenerative changes. However, other brain regions are within normal limits, and cognitive scores (MMSE 28, MoCA 24) are borderline normal/mildly impaired, suggesting possible early cognitive decline.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (due to borderline cognitive scores and focal atrophy but lack of clear functional decline)",
  "timestamp": "2025-07-26T17:00:47.369971"
}