{
  "ptid_time": "072_S_2083_2011-03-28",
  "img_path": "/data/qiuhui/data/adni/images/072_S_2083/2011-03-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 49,360 mm³, 33.5% above the reference mean. With a Z-score of 0.91 (81.7th percentile), this represents normal volume ; whole brain volume measures 877,523 mm³, 5.5% below the reference mean. With a Z-score of -0.66 (25.6th percentile), this represents normal volume ; entorhinal cortex volume measures 1,853 mm³, 46.5% below the reference mean. With a Z-score of -2.51 (0.6th percentile), this represents significant atrophy; fusiform gyrus volume measures 14,204 mm³, 11.8% below the reference mean. With a Z-score of -0.89 (18.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,975 mm³, 5.2% above the reference mean. With a Z-score of 0.47 (68.0th percentile), this represents normal volume . ",
  "text_data": "Age is 88.8 years. Gender is Female. Education: 12 years. MMSE: 27.0. MoCA: 23.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The entorhinal cortex shows significant atrophy (Z-score -2.51, 0.6th percentile), which is a strong biomarker for Alzheimer's pathology. However, other brain regions are within normal ranges, and cognitive scores (MMSE 27, MoCA 23) are borderline normal/mildly impaired for age. No APOE4 risk allele is present.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to isolated entorhinal atrophy but preserved global cognition and lack of APOE4)",
  "timestamp": "2025-07-26T09:12:08.975531"
}