{
  "ptid_time": "024_S_4084_2013-07-19",
  "img_path": "/data/qiuhui/data/adni/images/024_S_4084/2013-07-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 12,194 mm³, 56.6% below the reference mean. With a Z-score of -1.30 (9.8th percentile), this represents mild atrophy; hippocampal volume measures 8,581 mm³, 20.6% above the reference mean. With a Z-score of 1.89 (97.1th percentile), this represents moderate enlargement; whole brain volume measures 1,097,120 mm³, 12.6% above the reference mean. With a Z-score of 1.58 (94.3th percentile), this represents moderate enlargement; entorhinal cortex volume measures 3,902 mm³, 6.2% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume ; fusiform gyrus volume measures 18,511 mm³, 8.8% above the reference mean. With a Z-score of 0.80 (78.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,048 mm³, 25.5% above the reference mean. With a Z-score of 2.21 (98.6th percentile), this represents significant enlargement. ",
  "text_data": "Age is 70.4 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 29.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.02 SUVR (normal ); Total tau: 240.90 pg/mL (normal ); Phosphorylated tau: 21.01 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data shows mild ventricular atrophy but otherwise indicates above-average volumes in most regions, including the hippocampus and middle temporal gyrus. Cognitive scores (MMSE 30, MoCA 29) are intact, and biomarkers (T-tau, P-tau, AV45) are normal, with no APOE4 risk alleles.  \n\nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T03:17:33.847014"
}