{
  "ptid_time": "073_S_4443_2013-05-23",
  "img_path": "/data/qiuhui/data/adni/images/073_S_4443/2013-05-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 30,696 mm³, 2.2% above the reference mean. With a Z-score of 0.05 (52.1th percentile), this represents normal volume ; hippocampal volume measures 8,492 mm³, 5.8% above the reference mean. With a Z-score of 0.58 (71.9th percentile), this represents normal volume ; whole brain volume measures 1,092,240 mm³, 3.7% below the reference mean. With a Z-score of -0.53 (29.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,699 mm³, 13.2% below the reference mean. With a Z-score of -0.92 (18.0th percentile), this represents normal volume ; fusiform gyrus volume measures 21,973 mm³, 10.4% above the reference mean. With a Z-score of 0.86 (80.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,099 mm³, 3.1% above the reference mean. With a Z-score of 0.25 (60.0th percentile), this represents normal volume . ",
  "text_data": "Age is 68.9 years. Gender is Male. Education: 12 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 17.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. Cognitive assessments (MMSE and MoCA) are both perfect (30/30), and there is no APOE4 genetic risk factor.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T09:48:06.192036"
}