![]() The anomaly represented and described by MDCT with modified protocol leading to almost two times reduced total time of the examination and two times lower patient dose, while maintaining good diagnostic image quality. A case of a newborn with interrupted aortic arch type B is presented. Interrupted aortic arch (IAA) is a congenital anomaly where there is interruption or discontinuation of a segment of the aortic arch. Specific conditions include: Pulmonary atresia: The pulmonary valve is like a door between the right side of your heart and lungs. These congenital heart defects reduce blood flow between your heart and lungs (pulmonary flow). Main disadvantage of this imaging modality is the use of ionizing radiation and the radiation dose of the patient. Interrupted aortic arch: In interrupted aortic arch, your aorta is incomplete. In the fast decade, due to the high spatial and inherent high-contrast resolution, differences between tissues that differ in physical density by less than 1 % can be distinguished, and the short time of the examination, resulting in reduced use of sedation. Congenital aortic arch malformations present a large spectrum of variations and anomalies that emanate from disordered embryogenesis of branchial arches. The multidetector computed tomography (MDCT) is a leading imaging method. In Interrupted Aortic Arch (IAA), the aorta is divided somewhere along the arch into. The diagnosis of the anomaly is a challenge. The abnormality is often diagnosed and corrected in the neonatal period. Survival is not possible without surgery. This rare anomaly, with a frequency of 3 per 1 million infants (1% of congenital cardiac anomalies), was first described in 1778 by Steidele. Survival after complete repair of the aortic arch and ventricular septal defect in the newborn period is 90 percent. The interrupted aortic arch is a congenital condition with missing anatomical and lumenal connection between the ascending and descending aorta.
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