{
  "ptid_time": "057_S_0934_2018-08-09",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0934/2018-08-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,671 mm³, 8.9% below the reference mean. With a Z-score of -0.24 (40.5th percentile), this represents normal volume ; hippocampal volume measures 6,920 mm³, 6.5% above the reference mean. With a Z-score of 0.52 (70.0th percentile), this represents normal volume ; whole brain volume measures 875,480 mm³, 5.7% below the reference mean. With a Z-score of -0.68 (24.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,576 mm³, 3.3% above the reference mean. With a Z-score of 0.18 (57.0th percentile), this represents normal volume ; fusiform gyrus volume measures 17,686 mm³, 9.8% above the reference mean. With a Z-score of 0.74 (76.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,188 mm³, 4.7% below the reference mean. With a Z-score of -0.42 (33.9th percentile), this represents normal volume . ",
  "text_data": "Age is 82.0 years. Gender is Female. Education: 10 years. MMSE: 30.0. MoCA: 24.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ). ",
  "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, while the MoCA score of 24 suggests mild cognitive impairment (MCI). However, the absence of APOE4 and normal AV45 (amyloid PET) reduce the likelihood of Alzheimer's pathology.  \n\nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T08:07:05.912579"
}