noun, noun which may take the genitive case particle 'no'
intravascular; inside a blood vessel
Medical and biological term. Often used attributively with の, as in 血管内の (intravascular).
血管内治療は低侵襲な方法です。
Intravascular treatment is a minimally invasive method.
血管内の圧力が上昇している。
The pressure inside the blood vessel is rising.