{
  "ptid_time": "027_S_1387_2012-02-27",
  "img_path": "/data/qiuhui/data/adni/images/027_S_1387/2012-02-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 108,828 mm³, 122.6% above the reference mean. With a Z-score of 11.11 (100.0th percentile), this represents profound enlargement; whole brain volume measures 734,788 mm³, 26.6% below the reference mean. With a Z-score of -4.54 (0.0th percentile), this represents profound atrophy. ",
  "text_data": "Age is 90.6 years. Gender is Male. Education: 20 years. MMSE: 18.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (122.6% above reference mean) and profound whole brain atrophy (26.6% below reference mean), consistent with advanced neurodegeneration. The MMSE score of 18.0 (moderate impairment) and presence of one APOE4 allele further support a dementia diagnosis, likely Alzheimer's disease given the atrophy pattern.  \nDiagnosis: Dementia  \nConfidence: High",
  "timestamp": "2025-07-26T03:51:48.763206"
}