{
  "ptid_time": "007_S_1222_2020-02-18",
  "img_path": "/data/qiuhui/data/adni/images/007_S_1222/2020-02-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,140 mm³, 21.2% below the reference mean. With a Z-score of -0.57 (28.4th percentile), this represents normal volume ; hippocampal volume measures 5,844 mm³, 10.0% below the reference mean. With a Z-score of -0.80 (21.1th percentile), this represents normal volume ; whole brain volume measures 877,594 mm³, 5.5% below the reference mean. With a Z-score of -0.65 (25.7th percentile), this represents normal volume ; entorhinal cortex volume measures 2,870 mm³, 17.1% below the reference mean. With a Z-score of -0.92 (17.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,502 mm³, 2.4% above the reference mean. With a Z-score of 0.18 (57.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,611 mm³, 2.3% below the reference mean. With a Z-score of -0.21 (41.8th percentile), this represents normal volume . ",
  "text_data": "Age is 86.4 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 24.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) all fall within normal ranges based on Z-scores and percentiles. The MMSE score of 30 is normal, but the MoCA score of 24 suggests possible mild cognitive impairment (MCI). However, the absence of APOE4 and normal structural findings reduce the likelihood of significant neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to the borderline MoCA score but otherwise normal structural and genetic markers)",
  "timestamp": "2025-07-25T21:54:49.144052"
}