{
  "ptid_time": "128_S_0272_2018-05-18",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0272/2018-05-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 52,692 mm³, 42.5% above the reference mean. With a Z-score of 1.15 (87.5th percentile), this represents mild enlargement; hippocampal volume measures 6,795 mm³, 4.6% above the reference mean. With a Z-score of 0.37 (64.4th percentile), this represents normal volume ; whole brain volume measures 1,064,700 mm³, 14.7% above the reference mean. With a Z-score of 1.77 (96.1th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,781 mm³, 9.2% above the reference mean. With a Z-score of 0.50 (69.0th percentile), this represents normal volume ; fusiform gyrus volume measures 18,239 mm³, 13.2% above the reference mean. With a Z-score of 0.99 (84.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,811 mm³, 37.6% above the reference mean. With a Z-score of 3.35 (100.0th percentile), this represents profound enlargement. ",
  "text_data": "Age is 82.4 years. Gender is Female. Education: 19 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular enlargement but otherwise normal or above-average volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, and middle temporal gyrus). Cognitive testing (MMSE 30, MoCA 29) is intact, and there is no APOE4 genetic risk factor.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:44:41.317029"
}