{
  "ptid_time": "023_S_6535_2018-08-02",
  "img_path": "/data/qiuhui/data/adni/images/023_S_6535/2018-08-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,046 mm³, 24.6% below the reference mean. With a Z-score of -0.59 (27.8th percentile), this represents normal volume ; hippocampal volume measures 7,170 mm³, 5.2% below the reference mean. With a Z-score of -0.50 (30.8th percentile), this represents normal volume ; whole brain volume measures 979,853 mm³, 9.2% below the reference mean. With a Z-score of -1.20 (11.6th percentile), this represents mild atrophy; entorhinal cortex volume measures 3,272 mm³, 20.2% below the reference mean. With a Z-score of -1.37 (8.5th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,472 mm³, 7.3% below the reference mean. With a Z-score of -0.62 (26.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,066 mm³, 10.7% below the reference mean. With a Z-score of -0.96 (16.9th percentile), this represents normal volume . ",
  "text_data": "Age is 78.2 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. MMSE: 27.0. MoCA: 22.0. Logical Memory: 3.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.53 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild atrophy in the whole brain and entorhinal cortex, while other regions (hippocampus, fusiform gyrus, middle temporal gyrus) are within normal ranges. The MMSE score of 27 is normal, but the MoCA score of 22 suggests mild cognitive impairment. The absence of APOE4 reduces genetic risk, but the profoundly elevated AV45 (amyloid PET) indicates significant amyloid pathology.  \nDiagnosis: **MCI (Mild Cognitive Impairment)**  \nConfidence: **Medium** (due to conflicting MoCA/MMSE scores and imaging findings, but strong amyloid burden supports MCI over CN)",
  "timestamp": "2025-07-26T03:10:25.904514"
}