{
  "ptid_time": "016_S_6773_2019-07-31",
  "img_path": "/data/qiuhui/data/adni/images/016_S_6773/2019-07-31/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,067 mm³, 29.2% above the reference mean. With a Z-score of 0.84 (79.9th percentile), this represents normal volume ; hippocampal volume measures 9,062 mm³, 16.1% above the reference mean. With a Z-score of 2.23 (98.7th percentile), this represents significant enlargement; whole brain volume measures 1,153,380 mm³, 10.8% above the reference mean. With a Z-score of 1.30 (90.3th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,676 mm³, 0.5% below the reference mean. With a Z-score of -0.04 (48.4th percentile), this represents normal volume ; fusiform gyrus volume measures 21,166 mm³, 14.8% above the reference mean. With a Z-score of 1.35 (91.1th percentile), this represents mild enlargement; middle temporal gyrus volume measures 24,687 mm³, 20.2% above the reference mean. With a Z-score of 1.67 (95.2th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 55.1 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. MMSE: 30.0. MoCA: 30.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows no atrophy in key Alzheimer’s-related regions (hippocampus is enlarged, entorhinal cortex is normal). Cognitive scores (MMSE, MoCA) are perfect, and there is no APOE4 risk allele.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T00:39:48.979257"
}