Assessment of the usefulness of image reconstruction in the oblique and double-oblique sagittal planes for magnetic resonance imaging of the canine cranial cruciate ligament

Abstract

Introduction The aim of the study was to determine the quality and significance of the magnetic resonance image of the canine knee after reconstruction in the oblique and double-oblique sagittal plane. This reconstruction and 3D images are rarely used in common protocols due to the longer study time they require. The study aimed to demonstrate significance for such diagnostic images in specific sequences in order to stimulate consideration of their more frequent use in diagnosis of diseases of the cruciate ligament in dogs. Material and Methods All tests were carried out using an open magnetic resonance tomography scanner with magnetic field induction. The images obtained from the 30 canine patients examined were reconstructed and evaluated by independent appraisers. Statistical analysis was performed. Results The study showed that MRI of the stifle joint using 3D sequences provides higher quality images of the cranial cruciate ligament in dogs. The results of the statistical analysis showed that multi-faceted reconstruction allows the secondary determination of the oblique imaging planes and obtains images of adequate quality. Conclusion It can be concluded that multi-faceted reconstruction facilitates the secondary determination of oblique imaging planes. This reconstruction additionally makes images available of better quality compared to the 2D sequence.

Medial meniscus tears are most prevalent in type I ACL tears, while type I ACL tears only account for 8% of all ACL tears

“…1). Oblique coronal images parallel to the femoral intercondylar roof, which clearly depict the ACL, especially in the femoral origin area, may further improve the diagnostic efficacy for ACL remnant tissue [6, 21, 27, 41].…”

“…4c, d) was classified as having a type II injury in the coronal oblique plane and a type I injury in the sagittal plane, because the distal stump was reflexed in the anterior direction, while in the arthroscopy results, both patients had sufficient ACL stump length and underwent ACL repair (Supplement Video 1). The sensitivity, specificity, and accuracy of imaging in the oblique coronal plane were higher than those in the sagittal plane [17, 27, 41], but in some cases, combining information obtained in the different planes may help clinicians to classify ACL tears type more efficiently.…”