{
  "ptid_time": "123_S_4127_2012-08-03",
  "img_path": "/data/qiuhui/data/adni/images/123_S_4127/2012-08-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,961 mm³, 20.7% above the reference mean. With a Z-score of 0.52 (69.8th percentile), this represents normal volume ; hippocampal volume measures 8,012 mm³, 4.3% above the reference mean. With a Z-score of 0.48 (68.4th percentile), this represents normal volume ; whole brain volume measures 985,852 mm³, 4.2% below the reference mean. With a Z-score of -0.52 (30.0th percentile), this represents normal volume ; entorhinal cortex volume measures 3,513 mm³, 9.8% below the reference mean. With a Z-score of -0.76 (22.5th percentile), this represents normal volume ; fusiform gyrus volume measures 16,336 mm³, 10.3% below the reference mean. With a Z-score of -1.16 (12.3th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,091 mm³, 2.8% above the reference mean. With a Z-score of 0.25 (59.8th percentile), this represents normal volume . ",
  "text_data": "Age is 64.1 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 28.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus (Z-score -1.16, 12.3rd percentile). Cognitive testing (MMSE 30, MoCA 28) is within normal limits, and there is no APOE4 genetic risk factor. No significant hippocampal or entorhinal atrophy is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T12:31:51.631370"
}