{
  "ptid_time": "002_S_6030_2019-09-16",
  "img_path": "/data/qiuhui/data/adni/images/002_S_6030/2019-09-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 17,426 mm³, 22.0% below the reference mean. With a Z-score of -0.55 (29.1th percentile), this represents normal volume ; hippocampal volume measures 7,813 mm³, 1.7% above the reference mean. With a Z-score of 0.19 (57.4th percentile), this represents normal volume ; whole brain volume measures 1,085,880 mm³, 5.5% above the reference mean. With a Z-score of 0.69 (75.4th percentile), this represents normal volume ; entorhinal cortex volume measures 4,176 mm³, 7.3% above the reference mean. With a Z-score of 0.56 (71.3th percentile), this represents normal volume ; fusiform gyrus volume measures 20,115 mm³, 10.5% above the reference mean. With a Z-score of 1.18 (88.1th percentile), this represents mild enlargement; middle temporal gyrus volume measures 23,046 mm³, 12.3% above the reference mean. With a Z-score of 1.09 (86.3th percentile), this represents mild enlargement. ",
  "text_data": "Age is 67.1 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are within normal ranges or mildly enlarged, with no significant atrophy. Cognitive scores (MMSE and MoCA) are perfect (30/30), and there is no clinical indication of impairment. The presence of one APOE4 allele increases Alzheimer's risk but does not currently indicate pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T20:36:24.958456"
}