Department of Radiology;
Wakayama Medical University;
811-1 Kimiidera;
Wakayama 641-8510;
Japan;
Department of Pediatrics;
Wakayama Medical University;
811-1 Kimiidera;
Wakayama 641-8510;
Japan;
Department of Thoracic and Cardiovascular Surgery;
Wakayama Medical University;
811-1 Kimiidera;
Wakayama 641-8510;
Japan;
Pediatric; intervention; Embolization; Systemic; venous; collateral; Fontan; operation; Guglielmi; detachable; coil;