{
  "ptid_time": "067_S_4184_2012-03-23",
  "img_path": "/data/qiuhui/data/adni/images/067_S_4184/2012-03-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,078 mm³, 1.2% below the reference mean. With a Z-score of -0.03 (48.8th percentile), this represents normal volume ; hippocampal volume measures 7,390 mm³, 3.8% below the reference mean. With a Z-score of -0.43 (33.4th percentile), this represents normal volume ; whole brain volume measures 1,060,200 mm³, 3.0% above the reference mean. With a Z-score of 0.38 (64.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,728 mm³, 21.5% above the reference mean. With a Z-score of 1.66 (95.2th percentile), this represents moderate enlargement; fusiform gyrus volume measures 17,887 mm³, 1.8% below the reference mean. With a Z-score of -0.20 (42.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,933 mm³, 7.7% below the reference mean. With a Z-score of -0.69 (24.6th percentile), this represents normal volume . ",
  "text_data": "Age is 62.8 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 28.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges, with only the entorhinal cortex showing moderate enlargement (likely not pathological). Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 risk allele. No structural or clinical evidence of impairment.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:37:32.747480"
}