{
  "ptid_time": "072_S_2072_2011-03-28",
  "img_path": "/data/qiuhui/data/adni/images/072_S_2072/2011-03-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,221 mm³, 21.5% below the reference mean. With a Z-score of -0.52 (30.3th percentile), this represents normal volume ; hippocampal volume measures 5,515 mm³, 27.0% below the reference mean. With a Z-score of -2.64 (0.4th percentile), this represents significant atrophy; whole brain volume measures 1,009,720 mm³, 6.5% below the reference mean. With a Z-score of -0.84 (20.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,136 mm³, 23.5% below the reference mean. With a Z-score of -1.60 (5.5th percentile), this represents moderate atrophy; fusiform gyrus volume measures 18,112 mm³, 3.9% below the reference mean. With a Z-score of -0.33 (37.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,536 mm³, 8.4% below the reference mean. With a Z-score of -0.76 (22.4th percentile), this represents normal volume . ",
  "text_data": "Age is 73.3 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 23.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows significant atrophy (Z-score -2.64, 0.4th percentile), and the entorhinal cortex exhibits moderate atrophy (Z-score -1.60, 5.5th percentile), both key regions in Alzheimer's pathology. Despite normal MMSE (28.0), the MoCA (23.0) suggests mild cognitive impairment, aligning with structural findings.  \nDiagnosis: **MCI**  \nConfidence: **Medium** (due to borderline MoCA and absence of APOE4 risk allele, but strong structural evidence supports MCI).",
  "timestamp": "2025-07-26T09:11:31.138567"
}