{
  "ptid_time": "130_S_4417_2012-07-27",
  "img_path": "/data/qiuhui/data/adni/images/130_S_4417/2012-07-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 52,023 mm³, 35.1% above the reference mean. With a Z-score of 0.84 (80.0th percentile), this represents normal volume ; hippocampal volume measures 7,946 mm³, 5.1% above the reference mean. With a Z-score of 0.50 (69.1th percentile), this represents normal volume ; whole brain volume measures 1,136,110 mm³, 5.3% above the reference mean. With a Z-score of 0.68 (75.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,134 mm³, 0.8% above the reference mean. With a Z-score of 0.06 (52.2th percentile), this represents normal volume ; fusiform gyrus volume measures 21,356 mm³, 13.4% above the reference mean. With a Z-score of 1.14 (87.3th percentile), this represents mild enlargement; middle temporal gyrus volume measures 23,073 mm³, 8.1% above the reference mean. With a Z-score of 0.73 (76.7th percentile), this represents normal volume . ",
  "text_data": "Age is 74.9 years. Gender is Male. Education: 16 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, entorhinal cortex, middle temporal gyrus) are within normal ranges or mildly enlarged (fusiform gyrus). Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 risk allele. No structural or clinical indicators of impairment are present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T14:44:32.625079"
}