{
  "ptid_time": "002_S_1280_2007-08-23",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1280/2007-08-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,140 mm³, 28.2% below the reference mean. With a Z-score of -0.65 (25.9th percentile), this represents normal volume ; hippocampal volume measures 6,896 mm³, 3.1% below the reference mean. With a Z-score of -0.28 (38.9th percentile), this represents normal volume ; whole brain volume measures 981,373 mm³, 0.7% above the reference mean. With a Z-score of 0.09 (53.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,354 mm³, 8.7% below the reference mean. With a Z-score of -0.53 (29.7th percentile), this represents normal volume ; fusiform gyrus volume measures 15,798 mm³, 7.1% below the reference mean. With a Z-score of -0.65 (25.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,399 mm³, 9.2% below the reference mean. With a Z-score of -0.80 (21.1th percentile), this represents normal volume . ",
  "text_data": "Age is 71.2 years. Gender is Female. Education: 14 years. MMSE: 29.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: All brain volume measures (ventricular, hippocampal, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) fall within normal ranges based on Z-scores and percentiles. The MMSE score of 29 is within the normal range (≥26), and there is no significant atrophy or cognitive impairment indicated by the data.  \nDiagnosis: CN (Cognitively Normal)  \nConf",
  "timestamp": "2025-07-25T20:16:14.530628"
}