PATIENT DOSE IN DIGITAL RADIOGRAPHY UTILISING BMI CLASSIFICATION.

Dose audit is important towards optimisation of patients' radiation protection in diagnostic radiography. In this study, the effect of the body mass index (BMI) on radiation dose received by 1869 adult patients undergoing chest, abdomen, lumbar spine, kidneys and urinary bladder (KUB) and pelvis radiography in an X-ray room with a digital radiography system was investigated. Patients were categorised into three groups (normal, overweight and obese) based on the BMI values.

PATIENT DOSES IN COMMON DIAGNOSTIC X-RAY EXAMINATIONS.

A local survey was conducted, to evaluate the radiation dose to adult patients who underwent diagnostic X-ray examinations. Patient-related and technical data were recorded, in 1504 patients, for each of the 11 individual projections, of the 7 most common examinations performed in an X-ray room, with 1 digital radiography system. The patient entrance surface air kerma (ESAK) and the effective dose (ED) were calculated based on the X-ray tube output and the exposure parameters, as well as utilisation of suitable conversion coefficients, respectively.

Patient dose in brain perfusion imaging using an 80-slice CT system.

Background And Purpose: Brain CT Perfusion (CTP) is an X-ray imaging technique for the assessment of brain tissue perfusion, which can be used in several different entities. The aim of this study is the evaluation of the radiation dose to patients during a comprehensive brain CT prescription protocol (CPP) consisting of an unenhanced brain CT, a brain CT angiography and a CTP scan.

Materials And Methods: Eighteen patients were studied using an 80-slice CT system, with an iterative reconstruction algorithm.

Frequent Benign, Nontraumatic, Noninflammatory Causes of Low Back Pain in Adolescents: MRI Findings.

Introduction: Low back pain (LBP) is common in children and adolescents. There are many factors that cause LBP, including structural disorders, degenerative changes, Scheuermann's disease, fractures, inflammation, and tumors. Magnetic Resonance Imaging is the gold standard for diagnosing spinal abnormalities and is mandatory when neurological symptoms exist.

Comparative effectiveness of different transarterial embolization therapies alone or in combination with local ablative or adjuvant systemic treatments for unresectable hepatocellular carcinoma: A network meta-analysis of randomized controlled trials.

Background: The optimal transcatheter embolization strategy for patients with unresectable hepatocellular carcinoma (HCC) remains elusive. We conducted a systematic review and network meta-analysis (NMA) of different embolization options for unresectable HCC.

Methods: Medical databases were searched for randomized controlled trials evaluating bland transarterial embolization (TAE), conventional TACE, drug-eluting bead chemoembolization (DEB-TACE), or transarterial radioembolization (TARE), either alone or combined with adjuvant chemotherapy, or local liver ablation, or external radiotherapy for unresectable HCC up to June 2017.

The effect of distraction on change detection in crowded acoustic scenes.

In this series of behavioural experiments we investigated the effect of distraction on the maintenance of acoustic scene information in short-term memory. Stimuli are artificial acoustic 'scenes' composed of several (up to twelve) concurrent tone-pip streams ('sources'). A gap (1000 ms) is inserted partway through the 'scene'; Changes in the form of an appearance of a new source or disappearance of an existing source, occur after the gap in 50% of the trials.

Paclitaxel-Coated Balloons for the Treatment of Dysfunctional Dialysis Access. Results from a Single-Center, Retrospective Analysis.

Purpose: To investigate the safety and effectiveness of lutonix paclitaxel-coated balloon (PCB) for the treatment of dysfunctional dialysis access.

Materials And Methods: This was a single-center, single-arm, retrospective analysis of 39 patients (23 male, 59 %) undergoing 61 interventions using 69 PCBs in a 20-month period. There was a balance between arteriovenous fistulae (AVF) and grafts (AVG) (20 AVFs, 19AVGs), and the majority of lesions were restenotic (25/39, 64.

Giant ileocolic intussusception in an adult induced by a double ileal lipoma: a case report with pathologic correlation.

Intussusception in adults is rare, accounting for less than 5% of all cases. Unlike the childhood variant, adult intussusception is often associated with a small bowel lesion acting as the "lead point." We herein report an uncommon case of giant intussusception secondary to 2 separate lipomatous lesions located in the ileum, in an adult admitted to our hospital for acute severe abdominal pain.

Computed tomography cephalometric and upper airway measurements in patients with OSA and erectile dysfunction.

Purpose: Erectile dysfunction (ED) has been linked to obstructive sleep apnea (OSA). This study used computed tomography (CT) to identify cephalometric and upper airway anatomic features in patients with OSA that correlate with the presence of ED.

Methods: In this prospective study, 20 CT cephalometric and upper airway measurements, most commonly associated with OSA, were analyzed in 53 age- and BMI-matched consecutive eligible subjects.

Multidetector computed tomography versus platelet/spleen diameter ratio as methods for the detection of gastroesophageal varices.

Background: All patients with liver cirrhosis should undergo screening endoscopy, but there are limitations and this approach places a heavy burden upon endoscopy units. The aim of this study was to compare multidetector computed tomography (MDCT) and the platelet/spleen diameter ratio as non-invasive methods for the detection of gastroesophageal varices.

Methods: The study included 38 cirrhotics who underwent upper gastrointestinal (GI) endoscopy and MDCT within one month.

Common and uncommon intracranial arterial anatomic variations in multi-detector computed tomography angiography (MDCTA). What radiologists should be aware of.

Objectives: The aim of this retrospective study was twofold: (1) to show the role of multi-detector computed tomography angiography (MDCTA) in the evaluation of intracranial arterial anatomic variations; (2) to highlight their clinical importance with illustrated example cases.

Materials And Methods: One thousand seven hundred thirty-nine patients who underwent carotid and/or cerebral CTA using a 16-row multi-detector CT over the last 9 years were retrospectively analysed with attention to the presence of persistent carotid-basilar anastomosis and other intracranial arterial variations.

Results: All kinds of persistent carotid-basilar anastomosis were present in our series.

The impact of Platelet Rich Plasma (PRP) in osseointegration of oral implants in dental panoramic radiography: texture based evaluation.

Purpose: In this study the temporal texture differentiation associated with the bone formation properties, around loaded oral implants after Platelet Rich Plasma (PRP) employment, was investigated in Panoramic Radiographs.

Materials And Methods: Thirty eligible patients are randomly assigned to two groups. The test group received PRP application around new implants, while in the control group no PRP treatment was made.

Extent of silent cerebral infarcts in adult sickle-cell disease patients on magnetic resonance imaging: is there a correlation with the clinical severity of disease?

The aim of this paper is to correlate the extent of silent cerebral infarcts (SCIs) on magnetic resonance imaging (MRI) with the clinical severity of sickle cell disease (SCD) in adult patients. Twenty-four consecutive adult asymptomatic SCD patients (11 male and 13 female) with a mean age of 38.4 years (range 20-59) were submitted to brain MRI on a 1 Tesla Gyroscan Intera, Philips MR scanner with a dedicated head coil.

Assessing the use of haemostatic sealants in tubeless percutaneous renal access and their effect on renal drainage and histology: an experimental porcine study.

Objective: To evaluate the mid-term effects of haemostatic sealant application during tubeless percutaneous nephrolithotomy (PCNL) on renal drainage and histology in an in vivo porcine study.

Materials And Methods: Bilateral percutaneous access was established in 28 porcine renal units. At the end of the procedure, a type 1 absorbable fish origin collagen powder, a human fibrinogen- and thrombin-coated sponge or a cross-linked gelatin granule/topical thrombin matrix were randomly placed on the nephrostomy tracts.

Correlation of ultrasound-estimated bladder weight to urodynamic diagnoses in women with lower urinary tract symptoms.

Objective: To test the hypothesis that the ultrasound-estimated bladder weight (UEBW) will correlate with the urodynamic diagnoses in women with lower urinary tract symptoms, in particular, detrusor underactivity and bladder outflow obstruction. Ultrasonography has been increasingly used in the assessment of lower urinary tract conditions.

Methods: Adult women referred to the urodynamics suite for investigation of lower urinary tract symptoms were enrolled.

Radiofrequency ablation of osteoid osteomas: five years experience.

The purpose of this study is to retrospectively evaluate the efficacy of radiofrequency ablation as a curative treatment method for benign bone tumours. Twenty-nine osteoid osteomas were treated with radiofrequency ablation. Primary success rate was 89.

Altered expression of NFY-C and RORA in colorectal adenocarcinomas.

NFY-C, a subunit of the transcription factor NFY, binds to the promoters of several eukaryotic genes, including cell cycle-related genes. RORA is a steroid hormone receptor implicated in a range of important cellular processes. We evaluated the expression of NFY-C and RORA in colorectal adenocarcinomas and normal colonic tissue.

Ankle post-traumatic osteoarthritis: a CT arthrography study in patients with bi- and trimalleolar fractures.

Purpose: To detect radiographically occult cartilage lesions using CT arthrography (CTa) in patients with malleolar fractures treated with open reduction internal fixation and to correlate the lesions with the functional outcome score.

Materials And Methods: Twenty-one patients (13 men and 8 women, mean age 35 years, range 16-55) underwent ankle CTa after a mean postoperative period of 565 days (range 271-756). CTa images were analyzed by two radiologists.

Management of gastrointestinal leaks after surgery for clinically severe obesity.

Background: Gastrointestinal leaks after bariatric surgery are the primary cause of serious morbidity and mortality nationwide. Enteric leaks can differ in severity, presentation, and management, depending on the type of bariatric surgery performed. Our objective was to describe the clinical presentation and treatment outcomes in patients who developed postoperative leaks at a university hospital bariatric referral center.

The effects of anti-VEGFR and anti-EGFR agents on glioma cell migration through implication of growth factors with integrins.

Objective: The aim of this study was to assess the antitumour effect of an anti-VEGFR (sunitinib) and the anti-EGFR multi-targeted agent (lapatinib), applied either alone or in combination on the migration capacity of two glioma cell lines. Furthermore, this study sought to evaluate the effect of lapatinib in the formation of EGFR-integrin β(1) complex, as well as the effect of sunitinib in the VEGFR-integrin β(3) and PDGFR-integrin β(3) complexes formation.

Materials And Methods: U87 and M059K cells were cultured as recommended by the American Type Culture Collection (ATCC).

The role of CT-guided percutaneous gastrostomy in patients with clinically severe obesity presenting with complications after bariatric surgery.

Purpose: To retrospectively evaluate the efficacy and safety of computed tomography (CT)-guided percutaneous gastrostomy in patients presenting with complications after bariatric surgery.

Materials And Methods: From January 2003 up to today, 25 patients (20 women), formerly operated for severe obesity, were referred for gastrostomy, after presenting with a complication. The mean age and body mass index were 38±9.

Percutaneous minimally invasive management of iatrogenic ureteral injuries.

Purpose: To present experience with the percutaneous management of iatrogenic ureteral injuries.

Patients And Methods: Eighteen women and six men with a mean age of 59.3 years (range 33-80 years) received a diagnosis of ureteral injury sustained during gynecologic, urologic, and general surgical procedures.

Ureteral stents: new ideas, new designs.

Ureteral stents represent a minimally invasive alternative to preserve urinary drainage whenever ureteral patency is deteriorated or is under a significant risk to be occluded due to extrinsic or intrinsic etiologies. The ideal stent that would combine perfect long-term efficacy with no stent-related morbidity is still lacking and stent usage is associated with several adverse effects that limit its value as a tool for long-term urinary drainage. Several new ideas on stent design, composition material and stent coating currently under evaluation, foreseen to eliminate the aforementioned drawbacks of ureteral stent usage.

CT diagnosis of hypertensive brainstem encephalopathy (HBE): A diagnostic challenge in the emergency department.

Hypertensive encephalopathy usually involves the posterior supratentorium, with uncommon involvement of the brainstem. We present a case of acute hypertensive encephalopathy of the brainstem diagnosed by means of CT. The brainstem was markedly hypodense, with no evidence of typical concomitant parieto-occipital involvement.