{
  "ptid_time": "029_S_0824_2007-09-14",
  "img_path": "/data/qiuhui/data/adni/images/029_S_0824/2007-09-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,124 mm³, 28.3% below the reference mean. With a Z-score of -0.65 (25.8th percentile), this represents normal volume ; hippocampal volume measures 6,401 mm³, 10.0% below the reference mean. With a Z-score of -0.92 (17.9th percentile), this represents normal volume ; whole brain volume measures 975,282 mm³, 0.1% above the reference mean. With a Z-score of 0.01 (50.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,358 mm³, 8.6% below the reference mean. With a Z-score of -0.53 (29.9th percentile), this represents normal volume ; fusiform gyrus volume measures 19,224 mm³, 13.0% above the reference mean. With a Z-score of 1.18 (88.2th percentile), this represents mild enlargement; middle temporal gyrus volume measures 19,235 mm³, 0.3% above the reference mean. With a Z-score of 0.03 (51.2th percentile), this represents normal volume . ",
  "text_data": "Age is 77.2 years. Gender is Female. Education: 13 years. MMSE: 30.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, middle temporal gyrus) are within normal ranges, with only the fusiform gyrus showing mild enlargement. The MMSE score of 30/30 indicates no cognitive impairment, and the absence of APOE4 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T04:15:27.163112"
}