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Cardiac lymphatic dynamics after ischemia and reperfusion--experimental model.

Abstract：

:ABSTRACT. The aim of the present study was to investigate the lymphatic cardiac circulation in an experimental model of ischemia plus reperfusion in mongrel dogs (Canis familiaris L). As radiotracer we used 0.2-0.25 ml (111 MBq) of 99mTc-Re2S7 colloid (+/-10 microm), injected subcapsullary below the second diagonal of the descending anterior ligated coronary artery with a special needle. A gamma-camera/Starport + DecStation were used for data acquisition. Four experimental groups with five animals each were established: G I = controls; G II = immediately after acute myocardial infarction (AMI); G III = late infarction (5 days after AMI); G IV = ischemia (90 min) + reperfusion. Four regions of interest (ROIs) were chosen: injection area (ZA), above (ZB), near right (ZD), and far right (ZC) from ZA. Mean disappearance times in ZA and dynamic parameters in the other ROIs were determined from activity/time curves drawn in each area, using homemade software. The results obtained seem to indicate that the methodology is appropriate to a detailed study of lymphatic drainage in pathological situations in animal models.

journal_name

Nucl Med Biol

journal_title

Nuclear medicine and biology

authors

Santos AC,de Lima JJ,Botelho MF,Pacheco MF,Sousa P,Bernardo J,Ferreira N,Gonçalves L,Aguiar J,Providência LA,Pauwels EK

doi

10.1016/s0969-8051(98)00037-7

subject

Has Abstract

pub_date

1998-10-01 00:00:00

pages

685-8

issue

7

eissn

0969-8051

issn

1872-9614

pii

S0969-8051(98)00037-7

journal_volume

25

pub_type

杂志文章

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