{
  "ptid_time": "127_S_5132_2014-05-01",
  "img_path": "/data/qiuhui/data/adni/images/127_S_5132/2014-05-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,369 mm³, 48.8% below the reference mean. With a Z-score of -1.12 (13.2th percentile), this represents mild atrophy; hippocampal volume measures 8,114 mm³, 14.0% above the reference mean. With a Z-score of 1.29 (90.1th percentile), this represents mild enlargement; whole brain volume measures 1,017,680 mm³, 4.4% above the reference mean. With a Z-score of 0.56 (71.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,760 mm³, 2.4% above the reference mean. With a Z-score of 0.15 (55.8th percentile), this represents normal volume ; fusiform gyrus volume measures 19,008 mm³, 11.7% above the reference mean. With a Z-score of 1.07 (85.7th percentile), this represents mild enlargement; middle temporal gyrus volume measures 20,342 mm³, 6.1% above the reference mean. With a Z-score of 0.53 (70.2th percentile), this represents normal volume . ",
  "text_data": "Age is 70.3 years. Gender is Female. Education: 12 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular atrophy but otherwise normal or mildly enlarged volumes in key regions (hippocampus, fusiform gyrus, etc.). Cognitive scores (MMSE, MoCA) are intact, and there is no APOE4 risk allele. No clinical or structural evidence of impairment.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:26:30.118865"
}