{
  "ptid_time": "067_S_5159_2013-05-02",
  "img_path": "/data/qiuhui/data/adni/images/067_S_5159/2013-05-02/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,853 mm³, 24.6% below the reference mean. With a Z-score of -0.61 (26.9th percentile), this represents normal volume ; hippocampal volume measures 7,575 mm³, 1.4% below the reference mean. With a Z-score of -0.16 (43.6th percentile), this represents normal volume ; whole brain volume measures 1,093,720 mm³, 6.3% above the reference mean. With a Z-score of 0.78 (78.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,863 mm³, 0.8% below the reference mean. With a Z-score of -0.06 (47.6th percentile), this represents normal volume ; fusiform gyrus volume measures 19,873 mm³, 9.1% above the reference mean. With a Z-score of 1.03 (84.8th percentile), this represents mild enlargement; middle temporal gyrus volume measures 19,869 mm³, 3.2% below the reference mean. With a Z-score of -0.28 (38.9th percentile), this represents normal volume . ",
  "text_data": "Age is 66.4 years. Gender is Female. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal. MMSE: 30.0. MoCA: 28.0. Logical Memory: 14.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.01 SUVR (normal ); Amyloid beta: 1506.00 pg/mL (mild elevated); Total tau: 161.40 pg/mL (normal ); Phosphorylated tau: 14.96 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges or mildly enlarged (fusiform gyrus). Cognitive scores (MMSE 30, MoCA 28) are intact, and biomarkers show only mild Aβ elevation with normal tau and AV45.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:42:23.892013"
}