{
  "ptid_time": "116_S_0752_2006-08-16",
  "img_path": "/data/qiuhui/data/adni/images/116_S_0752/2006-08-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 44,146 mm³, 19.4% above the reference mean. With a Z-score of 0.52 (70.0th percentile), this represents normal volume ; whole brain volume measures 931,581 mm³, 0.4% above the reference mean. With a Z-score of 0.04 (51.8th percentile), this represents normal volume . ",
  "text_data": "Age is 82.0 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Endocrine-Metabolic; Hematopoietic-Lymphatic; Renal-Genitourinary; Malignancy; Major Surgical Procedures. MMSE: 24.0. Logical Memory: 8.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is slightly elevated but still within the normal range (Z-score 0.52, 70th percentile), and whole brain volume is normal (Z-score 0.04, 51.8th percentile). The MMSE score of 24 in an 82-year-old female is borderline, possibly indicating mild cognitive impairment (MCI), especially given the presence of one APOE4 allele, a known risk factor for Alzheimer's.  \n\n**Diagnosis:** MCI  \n**Confidence:** Medium  \n\n*(Note: A full diagnosis would require additional clinical evaluation, such as neuropsychological testing, to confirm MCI and rule out other causes of cognitive decline.)*",
  "timestamp": "2025-07-26T11:57:27.734937"
}