Non‐contrast magnetic resonance angiography for systemic artery evaluation in Kawasaki disease

Author:

Nonaka Haruki1ORCID,Tahara Masahiro2,Sanada Kazuya3,Okano Mio1,Morikawa Yuko1,Yoshiura Takayuki1,Nitta Tetsuya4,Urayama Kotaro5,Yoneyama Masami6,Imada Naoyuki7,Sato Tomoyasu8

Affiliation:

1. Department of Radiological Technology Tsuchiya General Hospital Hiroshima Japan

2. Hiroshima central street Children's Clinic Hiroshima Japan

3. Department of Pediatric Cardiology Shizuoka Children's Hospital Shizuoka Japan

4. Nitta Pediatric Clinic Hiroshima Japan

5. Department of Pediatric Cardiology Tsuchiya General Hospital Hiroshima Japan

6. Philips Japan Tokyo Japan

7. Department of Health Care North Hiroshima Hospital Hiroshima Japan

8. Department of Diagnostic Radiology Tsuchiya General Hospital Hiroshima Japan

Abstract

AbstractBackgroundKawasaki disease (KD) is a systemic vasculitis; systemic arteries other than the coronary arteries should therefore also be evaluated. This study investigated the feasibility of evaluating coronary aneurysms, systemic artery aneurysms (SAAs), and cerebrovascular diseases in patients with KD using non‐contrast magnetic resonance angiography (NC‐MRA).MethodsCoronary artery protocols, including coronary magnetic resonance angiography (MRA) and vessel wall imaging, were performed in 57 examinations of 28 patients. Systemic artery protocol, including SAA scans and head MRA, along with coronary artery protocol, were performed in 42 examinations of 42 patients. The image quality of the SAAs was evaluated on a 4‐point scale. Examination time and sedation dosage were compared between the protocols. The presence of SAAs and cerebrovascular disease was also evaluated.ResultsThe image quality score of SAAs was 4 (interquartile range [IQR]: 4–4) for the aorta, 4 (IQR: 3–4) for the subclavian artery, 4 (IQR: 3–4) for the renal artery, and 3 (IQR: 3–4) for the iliac artery. No differences were found between examination time (47.0 [IQR: 43.0–61.0] min vs. 51.0 [IQR: 45.0–60.0] min, p = 0.48) and sedative dose (4.63 [IQR: 3.93–5.79] mg/kg vs. 4.21 [IQR: 3.56–5.71] mg/kg, p = 0.37) between the protocols. Systemic artery protocol detected SAAs in three patients (7.1%), and cerebrovascular disease was not detected.ConclusionsEvaluating the coronary and systemic arteries in patients with KD using NC‐MRA on a single examination was possible without compromising examination time or sedation dose. The systemic artery protocol was useful in finding SAAs.

Publisher

Wiley

Subject

Pediatrics, Perinatology and Child Health

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