{
  "ptid_time": "082_S_6287_2018-05-15",
  "img_path": "/data/qiuhui/data/adni/images/082_S_6287/2018-05-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,874 mm³, 42.7% above the reference mean. With a Z-score of 1.07 (85.7th percentile), this represents mild enlargement; hippocampal volume measures 8,286 mm³, 7.8% above the reference mean. With a Z-score of 0.88 (81.0th percentile), this represents normal volume ; whole brain volume measures 1,091,820 mm³, 6.1% above the reference mean. With a Z-score of 0.76 (77.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,135 mm³, 6.2% above the reference mean. With a Z-score of 0.48 (68.5th percentile), this represents normal volume ; fusiform gyrus volume measures 19,554 mm³, 7.4% above the reference mean. With a Z-score of 0.83 (79.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,773 mm³, 11.0% above the reference mean. With a Z-score of 0.98 (83.5th percentile), this represents normal volume . ",
  "text_data": "Age is 69.3 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.97 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mild ventricular enlargement but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE 29, MoCA 27) are within normal ranges, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T10:10:02.571816"
}