{
  "ptid_time": "114_S_0410_2007-04-23",
  "img_path": "/data/qiuhui/data/adni/images/114_S_0410/2007-04-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,588 mm³, 16.8% below the reference mean. With a Z-score of -0.42 (33.7th percentile), this represents normal volume ; hippocampal volume measures 9,183 mm³, 19.5% above the reference mean. With a Z-score of 2.19 (98.6th percentile), this represents significant enlargement; whole brain volume measures 1,083,230 mm³, 5.3% above the reference mean. With a Z-score of 0.65 (74.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,552 mm³, 16.9% above the reference mean. With a Z-score of 1.31 (90.5th percentile), this represents mild enlargement; fusiform gyrus volume measures 20,196 mm³, 10.9% above the reference mean. With a Z-score of 1.23 (89.0th percentile), this represents mild enlargement; middle temporal gyrus volume measures 20,421 mm³, 0.5% below the reference mean. With a Z-score of -0.04 (48.3th percentile), this represents normal volume . ",
  "text_data": "Age is 62.3 years. Gender is Female. Education: 16 years. MMSE: 30.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. Biomarker levels: Amyloid beta: 963.60 pg/mL (normal ); Total tau: 281.70 pg/mL (normal ); Phosphorylated tau: 25.79 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show no atrophy in key regions (hippocampus, entorhinal cortex, fusiform gyrus are enlarged or normal), and CSF biomarkers (Aβ, T-tau, P-tau) are normal. The MMSE score of 30/30 indicates intact cognitive function.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T11:41:03.019974"
}