{
  "ptid_time": "020_S_0899_2006-09-25",
  "img_path": "/data/qiuhui/data/adni/images/020_S_0899/2006-09-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,683 mm³, 1.9% above the reference mean. With a Z-score of 0.05 (52.1th percentile), this represents normal volume ; hippocampal volume measures 6,026 mm³, 7.2% below the reference mean. With a Z-score of -0.58 (28.1th percentile), this represents normal volume ; whole brain volume measures 868,449 mm³, 6.4% below the reference mean. With a Z-score of -0.77 (22.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,150 mm³, 9.0% below the reference mean. With a Z-score of -0.49 (31.3th percentile), this represents normal volume ; fusiform gyrus volume measures 14,771 mm³, 8.3% below the reference mean. With a Z-score of -0.62 (26.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,558 mm³, 2.6% below the reference mean. With a Z-score of -0.23 (40.8th percentile), this represents normal volume . ",
  "text_data": "Age is 80.1 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Endocrine-Metabolic; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 30.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures, including hippocampal and entorhinal cortex volumes, fall within the normal range (Z-scores between -0.77 and 0.05). The MMSE score of 30 is intact, and there is no APOE4 genetic risk factor. No significant atrophy or cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T01:12:06.963244"
}