{
  "ptid_time": "016_S_2007_2011-01-11",
  "img_path": "/data/qiuhui/data/adni/images/016_S_2007/2011-01-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 89,096 mm³, 141.0% above the reference mean. With a Z-score of 3.81 (100.0th percentile), this represents profound enlargement; hippocampal volume measures 5,503 mm³, 15.3% below the reference mean. With a Z-score of -1.22 (11.0th percentile), this represents mild atrophy; whole brain volume measures 884,433 mm³, 4.7% below the reference mean. With a Z-score of -0.57 (28.6th percentile), this represents normal volume . ",
  "text_data": "Age is 84.4 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 29.0. MoCA: 29.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (141% above mean, Z-score 3.81) and mild hippocampal atrophy (15.3% below mean, Z-score -1.22), but normal whole brain volume (4.7% below mean, Z-score -0.57). Despite these structural changes, cognitive scores (MMSE 29, MoCA 29) are intact, and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (structural changes are concerning but cognitive scores are preserved, and APOE4 status is negative)",
  "timestamp": "2025-07-26T00:22:28.963144"
}