{
  "ptid_time": "068_S_0802_2006-08-25",
  "img_path": "/data/qiuhui/data/adni/images/068_S_0802/2006-08-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,106 mm³, 34.8% below the reference mean. With a Z-score of -0.94 (17.4th percentile), this represents normal volume ; hippocampal volume measures 7,214 mm³, 11.1% above the reference mean. With a Z-score of 0.89 (81.2th percentile), this represents normal volume ; whole brain volume measures 998,277 mm³, 7.6% above the reference mean. With a Z-score of 0.91 (81.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,853 mm³, 11.3% above the reference mean. With a Z-score of 0.61 (72.9th percentile), this represents normal volume ; fusiform gyrus volume measures 17,052 mm³, 5.8% above the reference mean. With a Z-score of 0.44 (67.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,848 mm³, 10.1% above the reference mean. With a Z-score of 0.90 (81.5th percentile), this represents normal volume . ",
  "text_data": "Age is 80.9 years. Gender is Female. Education: 8 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Cardiovascular; Musculoskeletal; Major Surgical Procedures. MMSE: 26.0. Logical Memory: 3.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges, with Z-scores and percentiles indicating no significant atrophy. The MMSE score of 26 is within the normal range for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T08:50:48.829437"
}