Micromaxx

Transcranial ultrasound was carried out as previously described.^{5 (link)} Briefly, we employed a 2.5 MHz transducer (Micromaxx, Sonosite Inc, Bothell, WA, USA) to examine the brainstem through a pre-auricular acoustic bone window (penetration depth=16 cm, dynamic rane=45 dB) by an expert sonographist. The substantia nigra was identified within the butterfly-shaped structure of the brainstem, scanning from each temporal bone window. Unbiased quantification of the echogenic area was carried out post hoc on saved images by two different evaluators blind to subject's condition. Sonographic measurements proved adequately reproducible.

At each check-up, all cows underwent a particular objective examination of the reproductive apparatus, by means of rectal exploration, to assess the possible occurrence of metritis and ovarian function; during the checks carried out at T14 and T28, an ultrasound examination was also carried out to measure the diameter of the uterine horn that had received the previous pregnancy, to monitor the degree of uterine involution. Ultrasound examination was performed using a multifrequency linear probe (5–10 MHz, set at 7.5 MHz) (SonoSite MicroMaxx Bothell, WA, United States) and filter set to 100 Hz. Ultrasound was always carried out by the same expert technician. To reduce the interposition of air, cause of artifacts, the probe was placed in the finger of an examination glove with ultrasound gel, before the examination. Feces were removed from the rectum and the diameter of the ex-pregnant uterine horn was measured in the B-mode. At least three images of uterine horn were stored and on this each one a cross-sectional diameter (from serosa to serosa) was detected. The mean of three transverse diameters was calculated, for each bovine.

In this retrospective analysis, all medical records of all patients presenting with peripheral lung lesions who underwent US-guided biopsy for diagnosis in the department of pulmonology at Liaquat University of Medical and Health Science Hospital, Hyderabad, Pakistan from 1^st January 2013 till 31^st December 2017 were included. Patient age and gender were included. Histological diagnosis on US-guided biopsy was included.
For US guidance, Micro Maxx (Sonosite Inc., Bothell, WA, USA) unit equipped with a 1-5 MHz phased array transducer was used. Patients were placed in a comfortable position depending on the location of the lesion. Lesion location was achieved by scanning the intercostal spaces, and Doppler scan was used to bypass the vessels from the biopsy path. Biopsy site was then disinfected (2% chlorhexidine, 70% isopropyl alcohol) and local anesthesia (2% lidocaine hydrochloride injection) was given. The biopsy was performed using a trucut needle under real-time guidance with US. The biopsy sample was saved in a formalin jar and sent for histopathology.
Diagnostic yield, sensitivity, specificity, and accuracy of the procedure was evaluated using binary classification [12 ]. Post-procedure US was done with suspicion of iatrogenic pneumothorax. Patients were monitored in the recovery room for an hour where chest radiography was conducted.

Study children received a complete LUS using a MicroMaxx portable ultrasound machine (Sonosite/FujiFilm) with an HFL38/13-6 MHz linear transducer. LUS assessment was conducted by one of three trained general practitioners following a standardized protocol developed using international recommendations.16 (link), 26 (link) Interpretation and conduct of LUS were performed independent of clinical evaluation and CXR findings.¹⁶ (link) We defined pneumonia on LUS as the presence of a hypoechoic area consistent with a consolidation and occupying of more than one intercostal space in longitudinal view, or a smaller consolidation with a pleural effusion, and interstitial abnormalities was defined as three or more B lines within a single acoustic window. We required agreement by two of three ultrasound readers for a final LUS diagnosis.¹⁶ (link)