{
  "ptid_time": "057_S_0934_2006-10-04",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0934/2006-10-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,665 mm³, 12.1% below the reference mean. With a Z-score of -0.28 (39.1th percentile), this represents normal volume ; hippocampal volume measures 6,903 mm³, 3.0% below the reference mean. With a Z-score of -0.27 (39.3th percentile), this represents normal volume ; whole brain volume measures 906,329 mm³, 7.0% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,501 mm³, 4.7% below the reference mean. With a Z-score of -0.29 (38.7th percentile), this represents normal volume ; fusiform gyrus volume measures 17,780 mm³, 4.5% above the reference mean. With a Z-score of 0.41 (65.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,958 mm³, 6.3% below the reference mean. With a Z-score of -0.55 (29.2th percentile), this represents normal volume . ",
  "text_data": "Age is 70.0 years. Gender is Female. Education: 10 years. Handedness: Left. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Smoking; Major Surgical Procedures. MMSE: 28.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "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. The MMSE score of 28 is within the normal range (≥26), and there is no APOE4 allele, which reduces genetic risk for Alzheimer's.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:06:12.738800"
}