{
  "ptid_time": "037_S_5222_2013-07-11",
  "img_path": "/data/qiuhui/data/adni/images/037_S_5222/2013-07-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,105 mm³, 27.9% below the reference mean. With a Z-score of -0.70 (24.3th percentile), this represents normal volume ; hippocampal volume measures 7,428 mm³, 3.3% below the reference mean. With a Z-score of -0.37 (35.4th percentile), this represents normal volume ; whole brain volume measures 983,764 mm³, 4.4% below the reference mean. With a Z-score of -0.55 (29.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,133 mm³, 6.2% above the reference mean. With a Z-score of 0.48 (68.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,821 mm³, 7.6% below the reference mean. With a Z-score of -0.86 (19.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,041 mm³, 7.2% below the reference mean. With a Z-score of -0.64 (26.1th percentile), this represents normal volume . ",
  "text_data": "Age is 67.5 years. Gender is Female. Education: 12 years. Handedness: Left. Race: White. Medical history: Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 29.0. MoCA: 25.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.10 SUVR (normal ); Total tau: 244.10 pg/mL (normal ); Phosphorylated tau: 22.25 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive screening (MMSE 29, MoCA 25) is within normal limits, and biomarkers (T-tau, P-tau, AV45) are normal. No significant atrophy or pathological markers are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T06:52:27.526252"
}