{
  "ptid_time": "128_S_4653_2012-11-06",
  "img_path": "/data/qiuhui/data/adni/images/128_S_4653/2012-11-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,150 mm³, 67.1% below the reference mean. With a Z-score of -1.81 (3.5th percentile), this represents moderate atrophy; hippocampal volume measures 6,398 mm³, 1.5% below the reference mean. With a Z-score of -0.12 (45.2th percentile), this represents normal volume ; whole brain volume measures 1,014,450 mm³, 9.3% above the reference mean. With a Z-score of 1.12 (86.8th percentile), this represents mild enlargement; entorhinal cortex volume measures 2,812 mm³, 18.8% below the reference mean. With a Z-score of -1.01 (15.5th percentile), this represents mild atrophy; fusiform gyrus volume measures 17,575 mm³, 9.1% above the reference mean. With a Z-score of 0.68 (75.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,128 mm³, 6.1% above the reference mean. With a Z-score of 0.54 (70.6th percentile), this represents normal volume . ",
  "text_data": "Age is 80.9 years. Gender is Female. Education: 12 years. MMSE: 30.0. MoCA: 27.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The data shows moderate ventricular atrophy and mild entorhinal cortex atrophy, but hippocampal volume is normal, and whole brain volume is mildly enlarged. Cognitive scores (MMSE 30, MoCA 27) are within normal limits, and there is no APOE4 risk allele.  \n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (While some atrophy is present, cognitive performance remains intact, and APOE4 status does not suggest elevated risk. However, age-related changes could still progress.)",
  "timestamp": "2025-07-26T14:04:14.521129"
}