{
  "ptid_time": "031_S_4029_2013-04-26",
  "img_path": "/data/qiuhui/data/adni/images/031_S_4029/2013-04-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 21,400 mm³, 28.7% below the reference mean. With a Z-score of -0.68 (24.7th percentile), this represents normal volume ; hippocampal volume measures 9,148 mm³, 14.0% above the reference mean. With a Z-score of 1.40 (91.9th percentile), this represents mild enlargement; whole brain volume measures 1,261,400 mm³, 11.2% above the reference mean. With a Z-score of 1.58 (94.3th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,464 mm³, 4.7% above the reference mean. With a Z-score of 0.33 (62.8th percentile), this represents normal volume ; fusiform gyrus volume measures 21,939 mm³, 10.2% above the reference mean. With a Z-score of 0.85 (80.2th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,740 mm³, 10.4% above the reference mean. With a Z-score of 0.86 (80.4th percentile), this represents normal volume . ",
  "text_data": "Age is 63.1 years. Gender is Male. Education: 20 years. MMSE: 26.0. MoCA: 25.0. Logical Memory: 9.0. APOEε4 alleles: 2.0. Biomarker levels: Amyloid beta: 835.90 pg/mL (normal ); Total tau: 272.00 pg/mL (normal ); Phosphorylated tau: 25.58 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal or above-average volumes in key regions (hippocampus, whole brain, entorhinal cortex, fusiform gyrus, middle temporal gyrus), with no significant atrophy. Biomarkers (Aβ, T-tau, P-tau) are normal, and cognitive scores (MMSE 26, MoCA 25) are within the normal range despite the presence of two APOE4 alleles.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T04:45:41.924140"
}