{
  "ptid_time": "128_S_4553_2012-10-22",
  "img_path": "/data/qiuhui/data/adni/images/128_S_4553/2012-10-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 16,709 mm³, 25.2% below the reference mean. With a Z-score of -0.63 (26.4th percentile), this represents normal volume ; hippocampal volume measures 7,597 mm³, 1.1% below the reference mean. With a Z-score of -0.13 (44.9th percentile), this represents normal volume ; whole brain volume measures 1,137,080 mm³, 10.5% above the reference mean. With a Z-score of 1.31 (90.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 3,702 mm³, 4.9% below the reference mean. With a Z-score of -0.38 (35.2th percentile), this represents normal volume ; fusiform gyrus volume measures 18,253 mm³, 0.2% above the reference mean. With a Z-score of 0.03 (51.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,542 mm³, 5.0% above the reference mean. With a Z-score of 0.44 (67.1th percentile), this represents normal volume . ",
  "text_data": "Age is 69.0 years. Gender is Female. Education: 17 years. MMSE: 30.0. MoCA: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within normal ranges, with no significant atrophy. Ventricular volume is normal, and whole brain volume is mildly enlarged. Cognitive scores (MMSE 30, MoCA 30) are intact, and there is no APOE4 genetic risk.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T14:01:34.375042"
}