{
  "ptid_time": "011_S_6465_2019-07-30",
  "img_path": "/data/qiuhui/data/adni/images/011_S_6465/2019-07-30/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,379 mm³, 45.4% below the reference mean. With a Z-score of -1.08 (14.0th percentile), this represents mild atrophy; hippocampal volume measures 8,783 mm³, 9.4% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; whole brain volume measures 1,316,550 mm³, 16.0% above the reference mean. With a Z-score of 2.27 (98.8th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,440 mm³, 4.2% above the reference mean. With a Z-score of 0.29 (61.3th percentile), this represents normal volume ; fusiform gyrus volume measures 25,688 mm³, 29.0% above the reference mean. With a Z-score of 2.41 (99.2th percentile), this represents significant enlargement; middle temporal gyrus volume measures 26,276 mm³, 17.2% above the reference mean. With a Z-score of 1.42 (92.2th percentile), this represents mild enlargement. ",
  "text_data": "Age is 67.8 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain imaging shows mild ventricular atrophy but otherwise normal-to-enlarged volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE, MoCA) are intact, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T23:04:00.702404"
}