{
  "ptid_time": "130_S_0886_2006-10-16",
  "img_path": "/data/qiuhui/data/adni/images/130_S_0886/2006-10-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,194 mm³, 35.2% below the reference mean. With a Z-score of -0.81 (21.0th percentile), this represents normal volume ; hippocampal volume measures 7,438 mm³, 4.5% above the reference mean. With a Z-score of 0.42 (66.2th percentile), this represents normal volume ; whole brain volume measures 975,937 mm³, 0.1% above the reference mean. With a Z-score of 0.02 (50.7th percentile), this represents normal volume ; entorhinal cortex volume measures 4,484 mm³, 22.1% above the reference mean. With a Z-score of 1.36 (91.2th percentile), this represents mild enlargement; fusiform gyrus volume measures 14,833 mm³, 12.8% below the reference mean. With a Z-score of -1.17 (12.2th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,857 mm³, 1.6% below the reference mean. With a Z-score of -0.14 (44.4th percentile), this represents normal volume . ",
  "text_data": "Age is 71.3 years. Gender is Female. Education: 15 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Musculoskeletal; Renal-Genitourinary; Allergies or Drug Sensitivities; Smoking; Major Surgical Procedures. MMSE: 28.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Total tau: 203.30 pg/mL (normal ); Phosphorylated tau: 17.65 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measures are largely within normal ranges, with only mild atrophy in the fusiform gyrus and mild enlargement in the entorhinal cortex. The MMSE score of 28 is within the normal range, and biomarkers (T-tau, P-tau) are unremarkable.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T14:31:46.206932"
}