"There are three ways to label erythrocytes, namely in vivo, modified in vivo, and in vitro methods. In vivo method injects stannous pyrophosphate into the patient's blood, followed by Tc99m-pertechnetate injection. However, this method has low labelling efficiency. In the modified in vivo method, the blood is withdrawn after injecting the stannous pyrophosphate. The blood is then withdrawn from the patient mixed with Tc-99m-pertechnetate and injected back into the same patient. In the in vitro method, the blood is first withdrawn from the patient and mixed with stannous pyrophosphate and Tc-99m-pertechnetate using a cold kit. After mixing, the blood is then injected back into the patient. This method has the highest labelling efficiency 7."
"timing: immediate/angioscintigraphic phase (1 sec frames x 60 sec); 1 min frames x 60-90 min; delayed imaging if necessary (6-8-24 hrs)."
Expected headings
"Characteristics"
"Uses, doses and timings"
"There are three ways to label erythrocytes, namely in vivo, modified in vivo, and in vitro methods. In vivo method injects stannous pyrophosphate into the patient's blood, followed by Tc99m-pertechnetate injection. However, this method has low labelling efficiency. In the modified in vivo method, the blood is withdrawn after injecting the stannous pyrophosphate. The blood is then withdrawn from the patient mixed with Tc-99m-pertechnetate and injected back into the same patient. In the in vitro method, the blood is first withdrawn from the patient and mixed with stannous pyrophosphate and Tc-99m-pertechnetate using a cold kit. After mixing, the blood is then injected back into the patient. This method has the highest labelling efficiency 7."
"Uses, doses and timings"
"timing: immediate/angioscintigraphic phase (1 sec frames x 60 sec); 1 min frames x 60-90 min; delayed imaging if necessary (6-8-24 hrs)."
"timing: immediate/angioscintigraphic phase (1 sec frames x 60 sec); 1 min frames x 60-90 min; delayed imaging if necessary (6-8-24 hrs)."