{
  "ptid_time": "153_S_4159_2012-08-28",
  "img_path": "/data/qiuhui/data/adni/images/153_S_4159/2012-08-28/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,769 mm³, 9.6% above the reference mean. With a Z-score of 0.22 (58.7th percentile), this represents normal volume ; hippocampal volume measures 6,704 mm³, 5.8% below the reference mean. With a Z-score of -0.53 (29.8th percentile), this represents normal volume ; whole brain volume measures 1,030,700 mm³, 5.8% above the reference mean. With a Z-score of 0.72 (76.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,789 mm³, 3.2% above the reference mean. With a Z-score of 0.19 (57.7th percentile), this represents normal volume ; fusiform gyrus volume measures 19,794 mm³, 16.3% above the reference mean. With a Z-score of 1.49 (93.2th percentile), this represents mild enlargement; middle temporal gyrus volume measures 18,544 mm³, 3.3% below the reference mean. With a Z-score of -0.28 (38.9th percentile), this represents normal volume . ",
  "text_data": "Age is 72.0 years. Gender is Female. Education: 19 years. MMSE: 30.0. MoCA: 26.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measures are largely within normal ranges, with only mild enlargement in the fusiform gyrus (Z-score 1.49). Cognitive scores (MMSE 30, MoCA 26) are within normal limits for age, and there is no APOE4 genetic risk factor. No significant atrophy is observed in key regions like the hippocampus or entorhinal cortex.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T17:13:03.983263"
}