{
  "ptid_time": "128_S_2036_2011-03-17",
  "img_path": "/data/qiuhui/data/adni/images/128_S_2036/2011-03-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,458 mm³, 26.3% below the reference mean. With a Z-score of -0.66 (25.5th percentile), this represents normal volume ; hippocampal volume measures 7,591 mm³, 1.2% below the reference mean. With a Z-score of -0.14 (44.6th percentile), this represents normal volume ; whole brain volume measures 1,014,780 mm³, 1.4% below the reference mean. With a Z-score of -0.17 (43.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,855 mm³, 1.0% below the reference mean. With a Z-score of -0.08 (47.0th percentile), this represents normal volume ; fusiform gyrus volume measures 17,523 mm³, 3.8% below the reference mean. With a Z-score of -0.42 (33.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,666 mm³, 5.6% above the reference mean. With a Z-score of 0.50 (69.0th percentile), this represents normal volume . ",
  "text_data": "Age is 67.2 years. Gender is Female. Education: 14 years. MMSE: 30.0. MoCA: 29.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges (Z-scores close to 0, percentiles near 50th). Cognitive scores (MMSE 30, MoCA 29) are intact, and there is no APOE4 risk allele. No structural or clinical indicators of impairment are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T13:57:51.217911"
}