scholarly journals Prevalence and characteristics of the aberrant anterior tibial artery: a single-center magnetic resonance imaging study and scoping review

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Julio Marin-Concha ◽  
Pablo Rengifo ◽  
Pedro Tapia ◽  
Daniel Kaiser ◽  
Timo Siepmann
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Scoping Review ◽  
Lower Leg ◽  
Published Data ◽  
Anterior Tibial Artery ◽  
Resonance Imaging ◽  
Tibial Artery ◽  
Knee Mri ◽  
Anterior Tibial

Abstract Background Planning surgical procedures of the lower leg benefits from considering the possibility of an aberrant anterior tibial artery (AATA), but previously published data on the frequency of this anatomic variant shows heterogeneity. We assessed the prevalence of AATA in a Latin American cohort using magnetic resonance imaging (MRI) and compared these with other studies reported in the literature. Methods We retrospectively included consecutive patients who had undergone multiplanar knee MRI at a radiology department in Lima, Peru. The MRI protocol included coronal T1 weighted, axial, sagittal and coronal proton density fat-saturated (PDFS) and sagittal T2 weighted images. Two experienced radiologists assessed all images and were blinded to each other’s findings. The frequency of the AATA was compared to previous cohorts. A scoping review was undertaken to provide an overview of previously published data on the prevalence of ATAA. Results We analyzed 280 knee MRI examinations of 253 patients (median age 41 years (IQR 31–52), 53.8% male). The aberrant anterior tibial artery variant was present in 8 of 280 (2.9%) evaluated knees, resulting in a prevalence of 3.2% in our study population. The PDFS sequence in the axial or sagittal orientation was most effective to identify AATA. The frequency of AATA in the reviewed literature using different radiological modalities ranged from 0.4 to 6% (median 1%, IQR (0.5–2.3%). Conclusions The AATA is a frequent vascular variant that can be detected by MRI in the preparation of invasive interventions of the lower leg.

Case Study of a Rare Incidence of a Leiomyosarcoma Mass Occluding the Distal Femoral Vein

2021 ◽  
pp. 875647932110440
Author(s):  
Tammy Perkins ◽  
Kelly McDonald ◽  
Douglas Clem
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Lower Extremity ◽  
Femoral Artery ◽  
Femoral Vein ◽  
Lower Leg ◽  
Resonance Imaging ◽  
Computed Tomographic ◽  
Magnetic Resonance Imaging Mri

This is a case study of a 47-year-old Caucasian male whose chief concern was left lower leg swelling for 1 month. A unilateral lower extremity venous duplex examination was performed. The results concluded that the distal femoral vein was occluded to the distal popliteal vein. Incidentally, a hypoechoic region in the distal thigh near the distal femoral artery was noted by the technologist. The patient was placed on anticoagulation and was told to return for further examination if there was no relief. Three months later, the patient continued to experience lower left leg swelling and returned for another sonogram. The hypoechoic region was seen again in the distal thigh and remained occluded. A computed tomographic arterial (CT-A) and magnetic resonance imaging (MRI) were ordered for further investigation of the hypoechoic area. The CT-A and the MRI revealed the presence of a mass in the distal thigh. The mass was biopsied and diagnosed as a leiomyosarcoma, grade 1. The mass caused the compression and occlusion of the distal femoral vein. The mass was removed, along with a portion of the distal femoral artery due to involvement of the artery within the mass. The artery was repaired with a graft.

scholarly journals A longitudinal study of muscle rehabilitation in the lower leg after cast removal using magnetic resonance imaging and strength assessment

2015 ◽  
Vol 2 (1) ◽  
pp. 101-112 ◽  
Author(s):  
Maria Psatha ◽  
Zhiqing Wu ◽  
Fiona M. Gammie ◽  
Aivaras Ratkevicius ◽  
Henning Wackerhage ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Longitudinal Study ◽  
Magnetic Resonance ◽  
Lower Leg ◽  
Resonance Imaging ◽  
Strength Assessment

scholarly journals Contrast-enhanced Magnetic Resonance Imaging in Pediatric Patients: Review and Recommendations for Current Practice

2013 ◽  
Vol 6 ◽  
pp. MRI.S12561 ◽  
Author(s):  
Ravi Bhargava ◽  
Gabriele Hahn ◽  
Wolfgang Hirsch ◽  
Myung-Joon Kim ◽  
Hans-Joachim Mentzel ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Contrast Medium ◽  
Best Practice ◽  
Imaging Modality ◽  
Published Data ◽  
Resonance Imaging ◽  
Enhanced Mri ◽  
Contrast Enhanced ◽  
Contrast Enhanced Mri

Magnetic resonance imaging (MRI), frequently with contrast enhancement, is the preferred imaging modality for many indications in children. Practice varies widely between centers, reflecting the rapid pace of change and the need for further research. Guideline changes, for example on contrast-medium choice, require continued practice reappraisal. This article reviews recent developments in pediatric contrast-enhanced MRI and offers recommendations on current best practice. Nine leading pediatric radiologists from internationally recognized radiology centers convened at a consensus meeting in Bordeaux, France, to discuss applications of contrast-enhanced MRI across a range of indications in children. Review of the literature indicated that few published data provide guidance on best practice in pediatric MRI. Discussion among the experts concluded that MRI is preferred over ionizing-radiation modalities for many indications, with advantages in safety and efficacy. Awareness of age-specific adaptations in MRI technique can optimize image quality. Gadolinium-based contrast media are recommended for enhancing imaging quality. The choice of most appropriate contrast medium should be based on criteria of safety, tolerability, and efficacy, characterized in age-specific clinical trials and personal experience.

scholarly journals 23Na Magnetic Resonance Imaging of the Lower Leg of Acute Heart Failure Patients during Diuretic Treatment

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0141336 ◽  
Author(s):  
Matthias Hammon ◽  
Susan Grossmann ◽  
Peter Linz ◽  
Christoph Kopp ◽  
Anke Dahlmann ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Heart Failure ◽  
Magnetic Resonance ◽  
Acute Heart Failure ◽  
Lower Leg ◽  
Resonance Imaging ◽  
Diuretic Treatment ◽  
Heart Failure Patients ◽  
23Na Magnetic Resonance Imaging

scholarly journals Morel-Lavallee Syndrome: A Rare Tumefactive Lesion

2020 ◽  
Author(s):  
Mohamed Labied ◽  
Siham Salam ◽  
Salma Jabri ◽  
Dalal Laoudiyi ◽  
Kamilia Chbani ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Lower Leg ◽  
Differential Diagnoses ◽  
Fibrous Capsule ◽  
Imaging Findings ◽  
Resonance Imaging ◽  
Imaging Characteristics ◽  
French Surgeon ◽  
Over Time

First described by the French surgeon Maurice Morel-Lavallee in 1853, Morel-Lavallee syndrome (MLS) is a serolymphatic effusion resulting from tangential injury to richly vascularized tissues. The imaging characteristics may be variable over time due to lesion progression and the eventual organization of a fibrous capsule. We report a case of extensive MLS in the lower leg of a 12-year-old child. We discuss the ultrasound and magnetic resonance imaging findings and describe the differential diagnoses.

How to Report: Knee MRI

2021 ◽  
Vol 25 (05) ◽  
pp. 690-699
Author(s):  
James Francis Griffith
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Mri Examination ◽  
Knee Mri ◽  
Key Features ◽  
Magnetic Resonance Imaging Mri

AbstractThe knee is the most commonly examined joint with magnetic resonance imaging (MRI) and, as such, it is the joint that most trainee radiologists start reporting. This article addresses the main pathologies encountered on MRI examination of the knee, outlining the key features to note and report, as well as providing examples of terminology used to describe these findings.

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