1,721,012 research outputs found
Atypical localization of rotator cuff calcific tendonitis: validation of the five-step shoulder ultrasound protocol in detection of subscapularis tendon calcifications
No full textCalcific tendonitis (CT) is characterized by deposition of calcium phosphate crystals in rotator cuff (RC) tendons of the shoulder. It most commonly involves the supraspinatus tendon even though the subscapularis tendon is a =rare site for calcific deposition, especially in young sportsmen. Herein, we report the case of a 29-year-old professional tennis player with CT of the subscapularis tendon diagnosed by using the European Society of Musculoskeletal Radiology (ESSR) standardized step-by-step shoulder ultrasound (US) protocol and treated with US-guided needling of the calcification site. The aim of this report is to increase the general awareness of the atypical localization of RCCT and to highlight the importance of US imaging in early diagnose and early treatment of this disease. Thus, sports physicians must be aware of the diagnostic and therapeutic possibilities offered by US in order to expedite rapid referral to a musculoskeletal specialist who can perform a point-of-care US examination of the shoulder and, where necessary, an US-guided interventional approach
The role of interventional radiology in the treatment of lower limb vascular injuries after orthopaedic surgery
Full text linkPurpose: This paper focuses on the role of interventional radiology embolisations in a series of patients presenting with iatrogenic vascular injuries of the lower limbs following orthopaedic interventions. Material and methods: Fourteen patients (mean age: 64 years, range 23-90 years) were retrospectively analysed. Clinical presentation consisted of palpable pulsatile mass, pain, reduced lower limb motion, or visible haematoma; 11 patients had also anaemia (haemoglobin < 7 g/dl). Results: The time between orthopaedic surgery and embolisation ranged between 0 and 67 days (mean: 15 days). Injured arterial vessels were as follows: inferior gluteal artery (2), superficial external pudendal artery (2), deep femoral artery (1), lateral circumflex femoral artery (3), medial circumflex femoral artery (2), articular branch of descending genicular artery (1), perforating femoral arteries (3), posterior tibial recurrent artery (1), and anterior tibial artery (1). The typologies of vascular lesion were: pseudoaneurysm 57%, bleeding with extraluminal contrast agent blush of the terminal arterial segment 36%, and laceration and bleeding with extraluminal contrast agent blush of the arterial main trunk 7%. Embolising agents adopted were microcoils 57%, glue 14%, microplug 7%, particles 14%, and covered stent 7%. In all cases clinical and procedural technical successes were obtained (100%). Conclusions: For the management of vascular injuries occurring after different orthopaedic interventions of the lower limbs, endovascular embolisations have proven to be safe and effective; orthopaedic surgeons should be aware of the support that interventional radiology could provide in the case of iatrogenic vascular complications
Interventional radiology in gynecology and obstetric practice: Safety issues
No full textInterventional radiology is continuing to reshape current practice in many specialties of clinical care and the fields of gynecology and obstetrics are no exception. Imaging skills, clinical knowledge as well as vascular and non-vascular interventional technical ability, are essential to practice interventional radiology effectively. Patient safety is of paramount importance in interventional radiology as in all branches of medicine. Potential failures occur throughout successful procedures and are attributed to a spectrum of errors, including equipment unavailability, planning errors, and communication errors. These are mainly preventable by improved preprocedural planning and teamwork. Of all the targeted and effective actions that can be undertaken to reduce adverse events, the use of safety checklists might have a prominent role. The advantage of a safety checklist for interventional radiology is that it guarantees that human error in terms of forgetting key steps in patient preparation, intraprocedural care, and postoperative care are not forgotten
Sex determination from scapular length measurements by CT scans images in a Caucasian population
No full text
Usefulness of doppler techniques in the diagnosis of peripheral iatrogenic pseudoaneurysms secondary to minimally invasive interventional and surgical procedures: imaging findings and diagnostic performance study
No full textThe pseudoaneurysm (PA) is a perfused sac directly connecting with the arterial lumen by an interruption of the vessel wall continuity, more commonly secondary to trauma or iatrogenic causes. Aim of our study was to determine the accuracy and usefulness of Doppler techniques in the diagnosis of peripheral iatrogenic PAs secondary to minimally invasive procedures. From a three year prospective research, 20 Duplex Ultrasound (DUS) studies in as many patients presenting with periarterial pulsating mass clinically suspected for PA secondary to minimally invasive procedures were selected. The PA final diagnosis was confirmed by angiography in 12 patients (60% cases), by computed tomography angiography in 5 patients (25%), by surgery in 2 patients (10%), and by magnetic resonance angiography in 1 patient (5%). The vessels involved by PA formation were: common femoral artery in 8 cases (40%); superficial femoral artery in 4 cases (20%); brachial artery in 3 cases (15%); popliteal artery in 2 cases (10%); superficial temporal artery (STA) in 2 cases (10%); dorsal medial digital artery of the foot in 1 case (5%). Our study confirmed the usefulness of doppler techniques in the diagnosis of peripheral iatrogenic PAs. Specifically, a sensitivity of 90–95%, a specificity of 100% and predictive values of 100% (VPP) and 83–90% (VPN) were reported. The radiologist must always suspect a PA in the differential diagnosis of lesions contiguous to an artery vessel. This is to prevent potential complications such as e.g. massive haemorrhage. In this order, DUS allows a careful selection of patients who require to undergo in-depth imaging methods or surgical therapy, thus contributing to a significant reduction of contrast medium and exposure to ionizing radiation
Post-traumatic intraparenchymal renal hemorrhages: Correlation between ct and dsa vascular findings for superselective embolization procedures
Full text linkBackground: This study aims to investigate the correlation between computed tomography (CT) and digital subtraction angiography (DSA) findings in patients affected by acute post-traumatic intraparenchymal renal hemorrhages and evaluate their conservative management with superselective embolization. Methods: This retrospective multicenter analysis focuses on patients affected by renal bleedings detected by contrast-enhanced CT and treated with superselective endovascular embolization. CT findings were compared to DSA. Embolization procedural data were analyzed and renal function was evaluated before and after the intervention. Results: Twenty-seven patients were retrospectively evaluated in one year. Compared to DSA, CT showed 96.3% diagnostic accuracy in terms of hemorrhage recognition; concerning the type of vascular lesion, there was discrepancy between CT and DSA in five cases. The technical success rate of embolization was 100%, while primary clinical success was 88.9%. The inferior parenchymal third was the most frequent site of renal injury. Microcoils were the most adopted embolics. Renal function did not change significantly before and after embolization. Conclusions: CT has elevated diagnostic accuracy in detecting post-traumatic intraparenchymal renal hemorrhages; in a small percentage, the type of vascular lesion may differ from the findings observed at DSA. In this scenario, superselective embolization presents high clinical success with a low complication rate
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
