https://watermark.silverchair.com/33-6-1148.pdf?token=AQECAH...
On the other hand
in small patients with narrow arteries or in older patients
with arteriosclerosis and a more rigid arterial system it may
be impossible to use the axillary artery for access because
one of the major limitations is the design of thoracic stent
grafts and the size of the introducer sheets. To accurately
assess patients’ anatomy prior to treatment, it is crucial to
obtain a contrast enhanced ECG gated MDCT. In comparison
to other stent graft systems the advantage of the stent graft
we used in this case was the small size of the introducer
sheath (20 Fr),

http://srla.ivascuarbarty.com/peripheral-vascular-interventi...

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4657110/
Mechanical recanalization was performed under general anesthesia in all patients. Based on a transfemoral approach with 6-7F introducer sheets, 6 F guiding catheters (usually ENVOY Guiding Catheter Codman, Inc., Raynham, MA 02767, USA)
https://www.terumo-europe.com/en-emea/products/radifocus®-in...

http://docs.cntd.ru/document/gost-r-iso-11070-2010

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Note added at 15 hrs (2019-10-11 12:24:13 GMT)
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https://books.google.ru/books?id=2f1Rv8cFGWYC&pg=PA232&lpg=P...