Correction: CT-Angiographic Aspects of Pulmonary Embolism on SARS COV-2.

[This corrects the article DOI: 10.5334/jbsr.3021.].

Aspects scanographiques de la pneumopathie à COVID-19 à Ouagadougou: Étude multicentrique à propos de 1017 cas.

OBJECTIVE: To study the chest CT profile of SARS-CoV-2 pneumonia in patients in the city of Ouagadougou. PATIENTS AND METHODS: descriptive cross-sectional study with retrospective collection of 1017 patients of both sexes. Included were patients aged 15 and over who had performed a chest CT scan without or with injection of contrast product, suspected or positive for COVID -19. The variables analyzed were: the history, the nature of the examination, the socio-demographic, clinical, CT data including the description of the tomodensitometric lesions and their characteristics, the extent of the parenchymal lesions according to the visual estimate of the French thoracic Imaging Society, complications, other lesions on the chest CT scan and CORADS classification. All parameters (age, sex on the one hand and clinical and CT findings on the other) were subjected to statistical analysis. RESULTS: The mean age of the patients was 56.95 years, predominantly male (1.47). Dyspnea was the most frequent symptomatology, at 46.26% (n = 506). Diabetes was the most common comorbidity with 29.37% (n = 94). Frosted glass opacity accounted for 90.95% of elementary lesions which were predominantly in plaque in 44.35% (n = 451), bilateral in (82.79%) and peripheral subpleural in (81.51%). The lower lobes were the most affected and postero-basal involvement predominant with greater involvement in the right lung. The extent was severe in 28.42% (n = 289). Thirty-nine point twenty-three (39.23)% or 399 of cases presented with complications dominated by pleural effusion at 56.39% (n = 225) and pulmonary embolism at 34.08% (n = 136 ). The lesions were classified as CORADS type in 815 CT reports. CORADS 5 type lesions were found in 47% of patients. Five hundred and ninety-two (592) PCRs of our patients were undetermined, in 58.21%. The PCR was positive in 342 cases or 33.63%. The bi- and multivariate analysis noted: a statistically significant link between the age and the extent of the lesions, between the extent of the lesions and the clinical context, between the extent of the lesions and comorbidities such as diabetes, Hypertension and renal failure. There was also a link between the PCR result and basic lesions such as ground glass and crazy paving and between the occurrence of pulmonary embolism and the presence of hypertension. DISCUSSION: The scanographic profile corresponded to that described in the literature. Frosted glass was the most common elementary lesion. The impairment was severe to critical in patients over 65 with comorbidity. CT angiography was the most requested in front of signs such as dyspnea and desaturation CONCLUSION: A study on CT specificities with precision on the onset of symptoms and the notion of vaccination would complement these results.

[Status of obstetrical echography at the imaging service of the University Hospital Center of Bogodogo from January 1st, 2016 to December 31st, 2018]. / État des lieux des échographies obstétricales au service d'imagerie du Centre Hospitalier Universitaire Bogodogo du 1er janvier 2016 au 31 décembre 2018.

Obstetric ultrasound performed according to standards from its prescription to the report is a guarantee of quality. The aim of our study was to take stock of obstetrical ultrasounds in order to make rational the ultrasound follow-ups of pregnancy. This was a descriptive cross-sectional study with retrospective data collection through the reports of obstetrical ultrasounds performed from the 1st January 2016 to 31st December 2018. Of the 13,487 ultrasounds in the study period, 2,355 were obstetric ultrasounds, constituting 1746% of the ultrasound activity. The mean gestational age was 27.54 years (± 6.19). The CHU Bogodogo was the requesting structure for 86.88%. Paramedics were prescribers in 66.47%. Third trimester ultrasounds made up 57.06%. Gestational age in 12.99% was greater than 37 weeks while in 66.37% gestational age was greater than 24 weeks. Prenatal follow-up was indicated in 54.48%. Pregnancies were progressive in 97.49%. Twin pregnancies represent 2.72% and ultrasound pathological pregnancies 11.80%. Obstetric Doppler was performed in 2.12% with pre-eclampsia as the main indication (52%). There was 1.18% malformation with nervous system involvement in 60.71%. Through this inventory, the training of prescribers of obstetric ultrasound appears essential. The establishment of an observatory of obstetric ultrasound practices would be an asset for the quality of these medical examinations.