{
  "ptid_time": "127_S_5200_2019-07-08",
  "img_path": "/data/qiuhui/data/adni/images/127_S_5200/2019-07-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 52,799 mm³, 42.8% above the reference mean. With a Z-score of 1.16 (87.6th percentile), this represents mild enlargement; hippocampal volume measures 8,389 mm³, 29.2% above the reference mean. With a Z-score of 2.34 (99.0th percentile), this represents significant enlargement; whole brain volume measures 1,009,540 mm³, 8.8% above the reference mean. With a Z-score of 1.05 (85.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 5,375 mm³, 55.2% above the reference mean. With a Z-score of 2.98 (99.9th percentile), this represents significant enlargement; fusiform gyrus volume measures 16,732 mm³, 3.9% above the reference mean. With a Z-score of 0.29 (61.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,064 mm³, 11.3% above the reference mean. With a Z-score of 1.00 (84.3th percentile), this represents mild enlargement. ",
  "text_data": "Age is 82.4 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows significant enlargement in the hippocampus and entorhinal cortex, along with mild enlargement in other regions, which is atypical for Alzheimer's disease (AD) or neurodegeneration. Combined with normal cognitive scores (MMSE 30, MoCA 30), no APOE4 risk alleles, and normal AV45 amyloid imaging, this suggests preserved brain health.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T13:28:22.965830"
}