{
  "ptid_time": "002_S_0685_2006-07-06",
  "img_path": "/data/qiuhui/data/adni/images/002_S_0685/2006-07-06/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,103 mm³, 5.8% above the reference mean. With a Z-score of 0.16 (56.2th percentile), this represents normal volume ; hippocampal volume measures 7,194 mm³, 10.8% above the reference mean. With a Z-score of 0.86 (80.6th percentile), this represents normal volume ; whole brain volume measures 989,449 mm³, 6.6% above the reference mean. With a Z-score of 0.79 (78.6th percentile), this represents normal volume ; entorhinal cortex volume measures 4,201 mm³, 21.3% above the reference mean. With a Z-score of 1.15 (87.5th percentile), this represents mild enlargement; fusiform gyrus volume measures 13,629 mm³, 15.4% below the reference mean. With a Z-score of -1.16 (12.4th percentile), this represents mild atrophy; middle temporal gyrus volume measures 18,673 mm³, 3.6% above the reference mean. With a Z-score of 0.32 (62.5th percentile), this represents normal volume . ",
  "text_data": "Age is 89.6 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities. MMSE: 30.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Total tau: 265.90 pg/mL (normal ); Phosphorylated tau: 22.82 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with only mild fusiform gyrus atrophy and mild entorhinal cortex enlargement. The MMSE score of 30 is intact, and biomarkers (T-tau, P-tau) are normal. No significant structural or clinical evidence of cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:03:26.464023"
}