{
  "ptid_time": "053_S_4578_2014-04-08",
  "img_path": "/data/qiuhui/data/adni/images/053_S_4578/2014-04-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 45,109 mm³, 60.7% above the reference mean. With a Z-score of 1.39 (91.8th percentile), this represents mild enlargement; hippocampal volume measures 9,269 mm³, 30.3% above the reference mean. With a Z-score of 2.78 (99.7th percentile), this represents significant enlargement; whole brain volume measures 1,198,180 mm³, 22.9% above the reference mean. With a Z-score of 2.89 (99.8th percentile), this represents significant enlargement; entorhinal cortex volume measures 3,746 mm³, 2.0% above the reference mean. With a Z-score of 0.12 (54.9th percentile), this represents normal volume ; fusiform gyrus volume measures 19,103 mm³, 12.3% above the reference mean. With a Z-score of 1.12 (86.8th percentile), this represents mild enlargement; middle temporal gyrus volume measures 22,047 mm³, 15.0% above the reference mean. With a Z-score of 1.30 (90.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 71.2 years. Gender is Female. Education: 14 years. MMSE: 29.0. MoCA: 29.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows significant enlargement in hippocampal and whole brain volumes, with mild enlargement in ventricular, fusiform gyrus, and middle temporal gyrus volumes. The entorhinal cortex is normal. Cognitive scores (MMSE, MoCA) are intact, and there is no APOE4 risk allele.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T07:59:38.735999"
}