{
  "ptid_time": "116_S_4483_2014-02-11",
  "img_path": "/data/qiuhui/data/adni/images/116_S_4483/2014-02-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,130 mm³, 18.0% above the reference mean. With a Z-score of 0.41 (66.0th percentile), this represents normal volume ; hippocampal volume measures 7,641 mm³, 7.4% above the reference mean. With a Z-score of 0.68 (75.1th percentile), this represents normal volume ; whole brain volume measures 989,827 mm³, 1.6% above the reference mean. With a Z-score of 0.20 (57.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,593 mm³, 2.2% below the reference mean. With a Z-score of -0.13 (44.7th percentile), this represents normal volume ; fusiform gyrus volume measures 16,889 mm³, 0.7% below the reference mean. With a Z-score of -0.07 (47.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,059 mm³, 11.0% below the reference mean. With a Z-score of -0.96 (17.0th percentile), this represents normal volume . ",
  "text_data": "Age is 71.5 years. Gender is Female. Education: 15 years. MMSE: 29.0. MoCA: 28.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.96 SUVR (normal ); Amyloid beta: 1696.00 pg/mL (moderate elevated); Total tau: 174.30 pg/mL (normal ); Phosphorylated tau: 15.26 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are all within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 29, MoCA 28) are intact, and APOE4 is negative. While Aβ is moderately elevated, tau markers (T-tau, P-tau) and AV45 are normal, suggesting no strong evidence of Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to moderately elevated Aβ, but no other supporting biomarkers or cognitive deficits)",
  "timestamp": "2025-07-26T12:12:20.555209"
}