{
  "ptid_time": "009_S_0842_2013-10-28",
  "img_path": "/data/qiuhui/data/adni/images/009_S_0842/2013-10-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,504 mm³, 22.4% below the reference mean. With a Z-score of -0.65 (25.8th percentile), this represents normal volume ; hippocampal volume measures 6,970 mm³, 0.0% above the reference mean. With a Z-score of 0.00 (50.1th percentile), this represents normal volume ; whole brain volume measures 1,137,310 mm³, 10.5% above the reference mean. With a Z-score of 1.38 (91.6th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,123 mm³, 3.9% above the reference mean. With a Z-score of 0.25 (60.0th percentile), this represents normal volume ; fusiform gyrus volume measures 21,591 mm³, 19.5% above the reference mean. With a Z-score of 1.69 (95.4th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 24,169 mm³, 19.8% above the reference mean. With a Z-score of 1.78 (96.2th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 80.6 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, ventricular, whole brain, fusiform gyrus, and middle temporal gyrus) are within normal or above-average ranges, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 26) are within normal limits for age, and APOE4 status (heterozygous) does not strongly indicate imminent decline.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:13:11.353217"
}