{
  "ptid_time": "130_S_4343_2012-12-07",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4343/2012-12-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,496 mm³, 69.2% below the reference mean. With a Z-score of -2.01 (2.2th percentile), this represents significant atrophy; hippocampal volume measures 7,829 mm³, 12.4% above the reference mean. With a Z-score of 1.07 (85.7th percentile), this represents mild enlargement; whole brain volume measures 1,091,830 mm³, 6.1% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,266 mm³, 17.7% below the reference mean. With a Z-score of -1.16 (12.3th percentile), this represents mild atrophy; fusiform gyrus volume measures 18,816 mm³, 4.2% above the reference mean. With a Z-score of 0.36 (64.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,345 mm³, 9.1% below the reference mean. With a Z-score of -0.81 (20.8th percentile), this represents normal volume . ",
  "text_data": "Age is 80.6 years. Gender is Male. Education: 16 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The data shows significant ventricular enlargement (indicative of atrophy) and mild entorhinal cortex atrophy, but hippocampal and whole brain volumes are normal or slightly enlarged. Cognitive scores (MMSE 30, MoCA 25) are borderline for MCI (MoCA <26 suggests possible impairment), but no APOE4 risk allele is present.  \nDiagnosis: **MCI** (mild cognitive impairment)  \nConfidence: **Medium** (atrophy patterns and borderline MoCA suggest MCI, but strong hippocampal preservation and lack of APOE4 reduce certainty).",
  "timestamp": "2025-07-26T14:40:00.119908"
}