{
  "ptid_time": "033_S_0923_2006-09-29",
  "img_path": "/data/qiuhui/data/adni/images/033_S_0923/2006-09-29/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,282 mm³, 20.7% below the reference mean. With a Z-score of -0.60 (27.4th percentile), this represents normal volume ; hippocampal volume measures 8,484 mm³, 21.8% above the reference mean. With a Z-score of 1.88 (97.0th percentile), this represents moderate enlargement; whole brain volume measures 1,033,180 mm³, 0.4% above the reference mean. With a Z-score of 0.05 (52.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,930 mm³, 24.2% above the reference mean. With a Z-score of 1.58 (94.4th percentile), this represents moderate enlargement; fusiform gyrus volume measures 17,791 mm³, 1.5% below the reference mean. With a Z-score of -0.13 (44.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,381 mm³, 11.0% above the reference mean. With a Z-score of 0.98 (83.7th percentile), this represents normal volume . ",
  "text_data": "Age is 83.1 years. Gender is Male. Education: 14 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Gastrointestinal; Hematopoietic-Lymphatic; Renal-Genitourinary; Malignancy; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1396.00 pg/mL (normal ); Total tau: 229.30 pg/mL (normal ); Phosphorylated tau: 20.83 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements show normal or above-average volumes in key regions (hippocampus, entorhinal cortex, middle temporal gyrus), and biomarkers (Aβ, T-tau, P-tau) are normal. The MMSE score of 30 is also within the normal range, indicating no cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T05:24:51.599036"
}