{
  "ptid_time": "082_S_4428_2013-01-09",
  "img_path": "/data/qiuhui/data/adni/images/082_S_4428/2013-01-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,048 mm³, 22.0% below the reference mean. With a Z-score of -0.53 (29.9th percentile), this represents normal volume ; hippocampal volume measures 7,119 mm³, 5.8% below the reference mean. With a Z-score of -0.57 (28.5th percentile), this represents normal volume ; whole brain volume measures 1,155,260 mm³, 7.0% above the reference mean. With a Z-score of 0.91 (81.9th percentile), this represents normal volume ; entorhinal cortex volume measures 4,257 mm³, 3.8% above the reference mean. With a Z-score of 0.26 (60.2th percentile), this represents normal volume ; fusiform gyrus volume measures 23,970 mm³, 27.2% above the reference mean. With a Z-score of 2.32 (99.0th percentile), this represents significant enlargement; middle temporal gyrus volume measures 22,986 mm³, 7.7% above the reference mean. With a Z-score of 0.69 (75.6th percentile), this represents normal volume . ",
  "text_data": "Age is 73.6 years. Gender is Male. Education: 18 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 16.0. 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 or even enlarged (fusiform gyrus). Cognitive scores (MMSE 30, MoCA 28) are intact, and there is no APOE4 genetic risk. No structural or functional deficits suggestive of neurodegeneration are present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T10:07:38.521829"
}