{
  "ptid_time": "099_S_4076_2015-07-14",
  "img_path": "/data/qiuhui/data/adni/images/099_S_4076/2015-07-14/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,849 mm³, 24.2% above the reference mean. With a Z-score of 0.55 (71.0th percentile), this represents normal volume ; hippocampal volume measures 7,005 mm³, 1.5% below the reference mean. With a Z-score of -0.14 (44.4th percentile), this represents normal volume ; whole brain volume measures 968,590 mm³, 0.6% below the reference mean. With a Z-score of -0.08 (46.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,480 mm³, 5.3% below the reference mean. With a Z-score of -0.32 (37.4th percentile), this represents normal volume ; fusiform gyrus volume measures 20,518 mm³, 20.6% above the reference mean. With a Z-score of 1.87 (97.0th percentile), this represents moderate enlargement; middle temporal gyrus volume measures 18,236 mm³, 4.9% below the reference mean. With a Z-score of -0.42 (33.6th percentile), this represents normal volume . ",
  "text_data": "Age is 76.6 years. Gender is Female. Education: 20 years. MMSE: 28.0. MoCA: 27.0. Logical Memory: 11.0. 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 moderate enlargement (likely not clinically significant). Cognitive scores (MMSE 28, MoCA 27) are normal for age, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T11:04:53.571197"
}