{
  "ptid_time": "021_S_5099_2015-03-03",
  "img_path": "/data/qiuhui/data/adni/images/021_S_5099/2015-03-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,571 mm³, 48.2% below the reference mean. With a Z-score of -1.21 (11.4th percentile), this represents mild atrophy; hippocampal volume measures 6,843 mm³, 11.0% below the reference mean. With a Z-score of -1.23 (11.0th percentile), this represents mild atrophy; whole brain volume measures 920,321 mm³, 10.6% below the reference mean. With a Z-score of -1.32 (9.4th percentile), this represents mild atrophy; entorhinal cortex volume measures 4,029 mm³, 3.5% above the reference mean. With a Z-score of 0.27 (60.7th percentile), this represents normal volume ; fusiform gyrus volume measures 16,886 mm³, 7.3% below the reference mean. With a Z-score of -0.82 (20.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,911 mm³, 7.8% below the reference mean. With a Z-score of -0.70 (24.3th percentile), this represents normal volume . ",
  "text_data": "Age is 63.6 years. Gender is Female. Education: 16 years. MMSE: 25.0. MoCA: 21.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The imaging data shows mild atrophy in the hippocampus, ventricles, and whole brain, which are common in early neurodegenerative changes. The MMSE (25) and MoCA (21) scores indicate mild cognitive impairment, and the presence of one APOE4 allele increases Alzheimer's risk.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (Cognitive scores and imaging support MCI, but clinical correlation for functional impact would strengthen confidence.)",
  "timestamp": "2025-07-26T01:53:18.606862"
}