{
  "ptid_time": "100_S_0047_2005-11-17",
  "img_path": "/data/qiuhui/data/adni/images/100_S_0047/2005-11-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 61,917 mm³, 31.7% above the reference mean. With a Z-score of 0.92 (82.1th percentile), this represents normal volume ; hippocampal volume measures 6,914 mm³, 0.8% below the reference mean. With a Z-score of -0.07 (47.3th percentile), this represents normal volume ; whole brain volume measures 1,036,750 mm³, 0.7% above the reference mean. With a Z-score of 0.10 (53.8th percentile), this represents normal volume ; entorhinal cortex volume measures 4,285 mm³, 8.0% above the reference mean. With a Z-score of 0.52 (69.9th percentile), this represents normal volume ; fusiform gyrus volume measures 16,413 mm³, 9.1% below the reference mean. With a Z-score of -0.79 (21.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,448 mm³, 6.3% above the reference mean. With a Z-score of 0.57 (71.5th percentile), this represents normal volume . ",
  "text_data": "Age is 84.7 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Respiratory; Musculoskeletal; Renal-Genitourinary; Allergies or Drug Sensitivities; Malignancy; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1410.00 pg/mL (normal ); Total tau: 224.40 pg/mL (normal ); Phosphorylated tau: 21.40 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. Biomarkers (Aβ, T-tau, P-tau) are normal, and cognitive performance (MMSE: 30/30) is intact. No significant atrophy or pathological markers are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T11:15:30.719041"
}