{
  "ptid_time": "068_S_2184_2015-07-09",
  "img_path": "/data/qiuhui/data/adni/images/068_S_2184/2015-07-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,084 mm³, 32.1% below the reference mean. With a Z-score of -0.87 (19.3th percentile), this represents normal volume ; hippocampal volume measures 7,143 mm³, 10.0% above the reference mean. With a Z-score of 0.80 (78.8th percentile), this represents normal volume ; whole brain volume measures 1,024,870 mm³, 10.4% above the reference mean. With a Z-score of 1.25 (89.4th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,474 mm³, 29.2% above the reference mean. With a Z-score of 1.58 (94.3th percentile), this represents moderate enlargement; fusiform gyrus volume measures 16,043 mm³, 0.4% below the reference mean. With a Z-score of -0.03 (48.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,186 mm³, 6.4% above the reference mean. With a Z-score of 0.57 (71.6th percentile), this represents normal volume . ",
  "text_data": "Age is 84.4 years. Gender is Female. Education: 16 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus) are within or above normal ranges, with no significant atrophy. Cognitive scores (MMSE 30, MoCA 27) are intact for age, and APOE4 status (heterozygous) does not override the absence of structural or functional deficits.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T08:54:08.249811"
}