{
  "ptid_time": "023_S_6374_2018-05-25",
  "img_path": "/data/qiuhui/data/adni/images/023_S_6374/2018-05-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,673 mm³, 55.2% above the reference mean. With a Z-score of 1.38 (91.7th percentile), this represents mild enlargement; hippocampal volume measures 7,661 mm³, 0.3% below the reference mean. With a Z-score of -0.03 (48.6th percentile), this represents normal volume ; whole brain volume measures 1,139,020 mm³, 10.7% above the reference mean. With a Z-score of 1.33 (90.8th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,052 mm³, 4.1% above the reference mean. With a Z-score of 0.32 (62.4th percentile), this represents normal volume ; fusiform gyrus volume measures 18,478 mm³, 1.5% above the reference mean. With a Z-score of 0.17 (56.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,635 mm³, 20.1% above the reference mean. With a Z-score of 1.78 (96.3th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 64.2 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 30.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.96 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild ventricular enlargement and moderate middle temporal gyrus enlargement, but hippocampal, entorhinal cortex, fusiform gyrus, and whole brain volumes are within normal ranges. Cognitive testing (MMSE 30, MoCA 30) is intact, and amyloid PET (AV45) is normal, with no APOE4 risk alleles.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T03:09:45.064911"
}