{
  "ptid_time": "021_S_0424_2006-04-20",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0424/2006-04-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 56,627 mm³, 20.4% above the reference mean. With a Z-score of 0.59 (72.4th percentile), this represents normal volume ; whole brain volume measures 905,090 mm³, 12.1% below the reference mean. With a Z-score of -1.58 (5.7th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 80.6 years. Gender is Male. Education: 16 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Gastrointestinal; Renal-Genitourinary. MMSE: 27.0. Logical Memory: 8.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.58, 5.7th percentile) but normal ventricular volume. The MMSE score of 27 is within the normal range, and the presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: Mild Cognitive Impairment (MCI)  \nConfidence: Medium  \n\n(Reasoning: While brain atrophy is notable, the preserved MMSE suggests no significant functional decline yet, fitting MCI. APOE4 and age support risk but aren't diagnostic. Confidence is medium due to lack of longitudinal/behavioral data.)",
  "timestamp": "2025-07-26T01:31:05.497455"
}