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Fig. 1 | BMC Surgery

Fig. 1

From: Near-infrared auto-fluorescence spectroscopy combining with Fisher’s linear discriminant analysis improves intraoperative real-time identification of normal parathyroid in thyroidectomy

Fig. 1

a Typical normalized NIR spectra of parathyroid and other cervical tissue (thyroid, fat and lymph node). The peak wave number ranges 267-281 cm− 1. The auto-fluorescence intensity of parathyroid is stronger than that of other tissues in the neck. b Comparison of peak auto-fluorescence intensity from the above cervical tissues. * The peak intensity of auto-fluorescence from parathyroid gland is significantly stronger than those from thyroid, fat and lymph node. c Representative histologic section of parathyroid gland tissue. (plotting scale represents 100 μM). d The recovery courses of thyroid function of four thyroid carcinoma patients undergoing total thyroidectomy with central neck dissection. Pre-OP: pre-operation; PO: post-operation; PTH: parathyroid hormone. Normal reference range of PTH: 15~65 pg/mL

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BMC Surgery

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