{
  "ptid_time": "116_S_4043_2011-05-17",
  "img_path": "/data/qiuhui/data/adni/images/116_S_4043/2011-05-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,957 mm³, 32.0% below the reference mean. With a Z-score of -0.93 (17.6th percentile), this represents normal volume ; hippocampal volume measures 7,951 mm³, 14.1% above the reference mean. With a Z-score of 1.22 (88.9th percentile), this represents mild enlargement; whole brain volume measures 1,087,110 mm³, 5.6% above the reference mean. With a Z-score of 0.74 (77.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,370 mm³, 10.1% above the reference mean. With a Z-score of 0.66 (74.6th percentile), this represents normal volume ; fusiform gyrus volume measures 17,855 mm³, 1.2% below the reference mean. With a Z-score of -0.10 (46.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,796 mm³, 1.9% below the reference mean. With a Z-score of -0.17 (43.4th percentile), this represents normal volume . ",
  "text_data": "Age is 82.1 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Respiratory; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Renal-Genitourinary; Malignancy; Major Surgical Procedures. MMSE: 29.0. MoCA: 26.0. Logical Memory: 14.0. Laboratory findings: Creatine Kinase: 264.00 (profound elevated); Triglycerides (GPO): 248.00 (significant elevated); Urea Nitrogen: 30.00 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.93 SUVR (mild reduced); Total tau: 263.90 pg/mL (normal ); Phosphorylated tau: 21.98 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with no significant atrophy in key regions like the hippocampus, entorhinal cortex, or middle temporal gyrus. Cognitive scores (MMSE 29, MoCA 26) are also within normal limits for age, and biomarkers (T-tau, P-tau) are normal, with only mild AV45 reduction.  \n\nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **High**",
  "timestamp": "2025-07-26T12:06:10.855819"
}