Evaluation of motion artifacts in cone-beam computed tomography with three different patient positioning

Objectives: Cone-beam computed tomography (CBCT), despite its advantages, has some drawbacks, such as artifacts and movement of the patient during scanning may lead to motion artifacts (MAs). This retrospective study aimed to evaluate the MAs in three different CBCT devices and to analyze their relationship with age, the gender of the patients, and scanning times. Methods: This study included 360 CBCT images from three institutions scanned in standing, sitting and supine positions. MAs presence, age, gender, and scanning times were recorded. Of the patients, 129 were scanned in standing position, 131 in sitting position, and 100 in supine position. Results: MAs were found in 6.7% of patients in total; 8%, 7.6%, and 4% in standing, sitting, and supine positions, respectively. No statistically significant relationship was observed between MAs presence and patient position. The mean age of the patients with MAs was higher than patients without, in total and in standing positions. Scanning time showed no correlation with artifact presence. Conclusions: Patient position is not related to MAs presence. The age of the patient is a factor in movement, and has a high impact in standing position. Although insignificant, MAs were less common in supine position than sitting and standing positions. Sitting and supine positioning might reduce motion artifacts in older patients. © 2020, Japanese Society for Oral and Maxillofacial Radiology and Springer Nature Singapore Pte Ltd

Wegener's granulomatosis complicated by pericardial tamponade and renal failure

WOS: A1996TU32200047PubMed ID: 8684561

VONRECKLINGHAUSENS-DISEASE-ASSOCIATED WITH ANGIODYSPLASIA OF COLON AND END-STAGE RENAL-DISEASE

WOS: A1995RY03100031PubMed ID: 8569970

Von Recklinghausen's disease associated with angiodysplasia of colon and end-stage renal disease [11]

PubMedID: 8569970[No abstract available

Low blood pressure, decreased incidence of hypertension, and renal cardiac, and autonomic nervous system functions in patients with sickle cell syndromes

WOS: 000176986800032PubMed ID: 12119496

Suppressed parathyroid hormone response to oral and intravenous calcium-calcitriol treatment in chronic renal failure

WOS: 000073582400017PubMed ID: 9609471

Low blood pressure, decreased incidence of hypertension, and renal cardiac, and autonomic nervous system functions in patients with sickle cell syndromes [4]

PubMedID: 12119496[No abstract available

Suppressed parathyroid hormone response to oral and intravenous calcium-calcitriol treatment in chronic renal failure [2]

PubMedID: 9609471[No abstract available

The evaluation of tree performance after transplanting

SIGLEAvailable from British Library Document Supply Centre-DSC:DXN012221 / BLDSC - British Library Document Supply CentreGBUnited Kingdo