Pilot study of contrast-free MRI reveals significantly impaired calf skeletal muscle perfusion in diabetes with incompressible peripheral arteries

Patients with diabetes mellitus (DM) are more likely to have densely calcified lesions in the below-the-knee tibial arteries. However, the relationship between peripheral arterial calcification and local skeletal muscle perfusion has not been explored. Thirty subjects were prospectively recruited into three groups in this pilot study: (1) Non-DM: 10 people without DM; (2) DM, ABI < 1.3: 10 people with DM and normal ankle-brachial index (ABI) (0.9-1.3); and (3) DM, ABI ⩾ 1.3: 10 people with DM and ABI ⩾ 1.3. All subjects underwent calf perfusion measurements at rest and during an isometric plantarflexion contraction exercise within the magnetic resonance imaging (MRI) system. The noncontrast MRI techniques were applied to quantitatively assess skeletal muscle blood flow (SMBF) and oxygen extraction fraction (SMOEF) in medial gastrocnemius and soleus muscles. Both SMBF and SMOEF reserves were calculated as the ratio of the exercise value to the resting value. Exercise SMBF and SMOEF values in the medial gastrocnemius muscle were lower in the two DM groups than in the non-DM group (p < 0.05). The SMBF reserve in medial gastrocnemius was significantly lower in the DM, ABI ⩾ 1.3 group compared to the DM, ABI < 1.3 group (p < 0.05). This study demonstrates that people with DM and calcified arteries had lower perfusion in gastrocnemius muscle compared to those without DM and those with DM and a normal ABI.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:26

Enthalten in:

Vascular medicine (London, England) - 26(2021), 4 vom: 01. Aug., Seite 367-373

Sprache:

Englisch

Beteiligte Personen:

Zheng, Jie [VerfasserIn]
Li, Ran [VerfasserIn]
Zayed, Mohamed A [VerfasserIn]
Yan, Yan [VerfasserIn]
An, Hongyu [VerfasserIn]
Hastings, Mary K [VerfasserIn]

Links:

Volltext

Themen:

Ankle–brachial index (ABI)
Calcification
Diabetes mellitus
Journal Article
Magnetic resonance imaging (MRI)
Noncompressible artery
Perfusion
Research Support, N.I.H., Extramural

Anmerkungen:

Date Completed 09.03.2022

Date Revised 02.08.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1177/1358863X21996465

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM323057667