Validation trial for efficacy of ultrasonographic measurement method to predict ascitic volume using virtual ultrasonography In the original publication of the article the formula under the heading “Three-point method” was incorrect, the correct formula is given in this correction.

Correction to: Feasibility of automated fetal fractional shortening measurement with two-dimensional tracking and construction of a reference range for normal fetuses In the original publication of the article, the Conflict of interest statement.

Shear wave velocity might correlate with portal venous perfusion if correct portal venous perfusion techniques are used

Acknowledgment to reviewers

Prostate cancer diagnosis and treatment using multiparametric transrectal ultrasonography

What is an ultrasound specialist?

The use of ultrasonography during minimally invasive Achilles tendon repair to avoid sural nerve injury

Response to the Letter: Shear wave velocity might correlate with portal venous perfusion if correct portal venous perfusion techniques are used

Ultrasound-guided injection and the pie crust technique for the treatment of symptomatic bipartite patella Abstract Purpose This study aimed to investigate the results of a new treatment procedure (ultrasound-guided injection and the “pie crust” technique for lengthening of capsular tendon structures) for symptomatic bipartite patella. Methods We retrospectively investigated patient outcomes following the treatment of symptomatic type III bipartite patella with our new technique. Fifteen knees in 14 boys (mean age, 13.0 ± 1.7 years) were included. The procedure involved the injection of 1% lidocaine (2 mL) and triamcinolone acetonide (5 mg) between the patella and fragment. We then punctured 10 sites from one skin puncture to extend lateral capsular tendon structures. The patients were clinically assessed using the Victorian Institute of Sports Assessment (VISA) score before and 1 week, 1 month, and 3 months after the procedure. Patients were also evaluated for complications. Results The average VISA score was 45.7 ± 4.7 before treatment, 70.6 ± 7.3 at 1 week post-treatment, 84.4 ± 16.6 at 1 month post-treatment, and 88.6 ± 18.3 at 3 months post-treatment. The VISA score improvement from before the procedure to 1 week after the procedure was significant (P < 0.01). There were no complications in any of the patients, who returned to sports at a mean of 4.2 ± 2.1 weeks after the procedure. However, two patients (three knees) had poor results and could not return to action; thus, they underwent surgical treatment 4 months after the ultrasonographic procedure. Conclusions This novel method is a potential treatment option for the management of symptomatic bipartite patella in outpatient clinics.

Value of ultrasound scoring system for assessing risk of pernicious placenta previa with accreta spectrum disorders and poor pregnancy outcomes Abstract Purpose To evaluate a system for assessing the risk of pernicious placenta previa (PPP) with placenta accreta spectrum (PAS) disorders and poor pregnancy outcomes. Methods This prospective study focused on PPP women at ≥ 28 weeks’ pregnancy. Transabdominal or transvaginal ultrasonography was used to assess PAS and poor pregnancy outcomes with a system involving uteroplacental demarcation, number and size of lacunae, bladder line, and placental basal and lacunae flow. Every item was assigned 0–2 points, and the sum yielded the final score. Diagnosis of PAS was based on surgery or pathology. One or more of postpartum hemorrhage (PPH) ≥ 1000 ml, hysterectomy, and organ invasion were regarded as a poor pregnancy outcome. Receiver operating characteristic (ROC) curves were generated. Results Fifty-one PPP women were included, with 70.6% having PAS and 75.0% of PAS women having a poor pregnancy outcome. The incidence of PAS diagnosis was 36.4% for those with a score < 5 points, with 0% having a poor outcome; 76.5% for those with a score ≥ 5 to < 8 points, with 61.5% having a poor outcome; and 100% for those with a score ≥ 8 points, with 100% having a poor pregnancy outcome. Conclusion The system for predicting PPP with PAS and poor pregnancy outcomes was of high accuracy.