{
  "ptid_time": "011_S_1080_2006-11-22",
  "img_path": "/data/qiuhui/data/adni/images/011_S_1080/2006-11-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,823 mm³, 40.8% below the reference mean. With a Z-score of -1.19 (11.8th percentile), this represents mild atrophy; whole brain volume measures 943,843 mm³, 8.3% below the reference mean. With a Z-score of -1.09 (13.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 81.4 years. Gender is Male. Education: 19 years. Handedness: Left. Race: White. Medical history: Neurologic; Cardiovascular; Musculoskeletal; Hematopoietic-Lymphatic; Malignancy; Major Surgical Procedures. MMSE: 28.0. Logical Memory: 7.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild atrophy in both ventricular and whole brain volumes, but the MMSE score of 28 is within the normal range (≥26), and the absence of APOE4 reduces genetic risk. No significant cognitive impairment is reported.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (mild atrophy could precede decline, but current cognitive performance is intact)",
  "timestamp": "2025-07-25T22:50:10.190516"
}