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(PRRT) of Gastro-Entero-Pancreatic NeuroEndocrine Tumors

(PRRT) of Gastro-Entero-Pancreatic NeuroEndocrine Tumors

(PRRT) of Gastro-Entero-Pancreatic NeuroEndocrine Tumors

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Somatostatin Somatostatin Analogues Analogues<br />

octreotide<br />

[Tyr 3 ]octreotide<br />

[Tyr 3 ]octreotate<br />

D-Phe-Cys-Phe-D-Trp-Lys-Thr-Cys-Thr (ol) (ol)<br />

D-Phe-Cys-Tyr-D-Trp-Lys-Thr-Cys-Thr (ol)<br />

D-Phe-Cys-Tyr-D-Trp-Lys-Thr-Cys-Thr<br />

additional negative charge<br />

DTPA<br />

HOOC-CH 2<br />

H 2 C-COOH<br />

N-(CH 2 ) 2 -N-(CH 2 ) 2 -N<br />

HOOC-CH 2<br />

CH 2 -COOH<br />

CH 2 -COOH<br />

DOTA<br />

HOOC<br />

NN<br />

NN<br />

NN<br />

NN<br />

COOH<br />

stable radiolabeling<br />

with 111 In, 67 Ga, 90 Y, 177 Lu<br />

HOOC<br />

COOH

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