[Ultrasound supported identification of the ligamentum conicum in teaching head and neck sonography]. / Sonographisch gestützte Identifikation des Ligamentum conicum in der Kopf-Hals-Ultraschalllehre.

OBJECTIVE: Upper airway obstructions are usually acute emergencies. Coniotomy is the last option to secure the airway and can be supported by sonography. The aim of this study was to establish a training program to teach these skills. MATERIAL AND METHODS: The training consisted of theoretical training with an additional video presentation (10 minutes each) and practical training (45 minutes). Evaluations were completed before (T1) and after (T2) the training to measure prior experience and satisfaction with the training as well as subjective and objective competence levels. At T2, a practical test was also completed by n=113 participants. A standardized evaluation form was used to document the results of the practical test. RESULTS: A large proportion of the participants had neither seen a coniotomy (64.6%) nor performed one independently (79.6%). Significant improvement (T1 to T2) was measured with regard to the subjective assessment of competence (p<0.001). The training received positive ratings for all items tested (scale ranges 1-2). During practical tests, the participants achieved an average of 89.2% of the possible points and needed a mean of 101 ±23 seconds to identify the conic ligament. CONCLUSION: Structured training for sonographic identification of the conic ligament leads to significant improvement in the subjective assessment of competence and a high objective competence level in a short period of time. This type of training should be standardized in head and neck ultrasound training in the future.

Role of associating liver partition and portal vein ligation for staged hepatectomy for advanced colorectal liver disease: indispensable or overstressed?

BACKGROUND: The aim of this study was to analyse the role of associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) for advanced colorectal liver disease. Surgery offers the best long-term survival in patients with colorectal liver metastases (CRLM). To increase the rates of resectability, two-stage procedures (TSH) and ALPPS are established methods in cases of advanced colorectal liver disease to avoid post hepatectomy liver failure (PHLF). There is still a debate of the oncological utility and the surgical ranking of ALPPS in this clinical scenario. The aim of this analysis was to share our ALPPS data of the perioperative and oncological outcome in patients with CRLM and to compare them with regard to recommendations of published data. METHODS: Ten patients (1.1%) out of 881 received a classical ALPPS procedure between January 2008 and November 2021 at our institution. The median volume increase was 76% (range 55-125%) in a median time interval of 7 days. RESULTS: The completion rate was 100% and all resections were R0-situations (100%). No patient developed PHLF. The median overall survival (OS) was 36.7 months and the median recurrence-free survival (RFS) 6.1 months. CONCLUSIONS: The ALPPS procedure is a surgical approach to achieve a R0 situation in patients with an extensive intrahepatic tumor burden. Nevertheless, the use of ALPPS should be allocated for patients who have no other surgical options.

Structured Reporting in Clinical Routine. / Strukturierte Befundung in der klinischen Routine.

BACKGROUND: The radiology report is the key component in the communication between radiologists and referring clinicians. Traditionally, reports are written as free text. Several studies have shown that structured reporting using dedicated report templates has a number of advantages compared to conventional reports. Therefore, many radiological societies have recommended the implementation of structured reporting in clinical routine. METHOD: In the meantime, collections of freely available templates have been presented and software solutions for structured reporting have been made commercially available. These allow for quality improvements in the written radiology report as they ensure that all relevant clinical information is included. Most vendors mainly supply proprietary report templates or allow users to create templates for their own institution. The German Radiological Society (DRG) has the goal of developing consensus-based, quality-assured report templates and providing them under a free license. RESULTS: The DRG has developed its first consensus-based report templates and provides them at www.befundung.drg.de. Further report templates will be developed in close cooperation with the respective committees of the DRG and referring clinicians. CONCLUSION: Structured reporting allows for a significant improvement in the quality of written radiology reports. The use of report templates requires personal and technical changes to the reporting process itself. Radiology should face these challenges in its leading role in the application of modern IT-based solutions. Vendors are now encouraged to provide practical solutions. KEY POINTS: · Structured reports have numerous advantages over conventional narrative reports.. · The German Radiological Society is developing consensus-based and quality assured report templates.. · Report templates are provided at www.befundung.drg.de under a free license.. · Vendors are now encouraged to provide solutions for the implementation of structured reporting.. CITATION FORMAT: · Pinto dos Santos D, Hempel J, Mildenberger P et al. Structured Reporting in Clinical Routine. Fortschr Röntgenstr 2019; 191: 33 - 39.

Quantification of perfusion reduction by using 2D-perfusion angiography following transarterial chemoembolization with drug-eluting beads.

PURPOSE: To analyze the feasibility of 2D-perfusion angiography (2D-PA) for the quantification of perfusion reduction following transarterial chemoembolization with drug-eluting beads (DEB-TACE). METHODS: Overall, 24 DEB-TACE procedures in 19 patients were included. To quantify changes in tumor perfusion following DEB-TACE using 2D-PA, the acquired digital subtraction angiography (DSA) series were post-processed. A reference region-of-interest (ROI) in a main hepatic artery and two, distal target ROIs in embolized tumor tissue and in non-target liver parenchyma were placed in corresponding areas on DSA pre- and post-DEB-TACE. The time to peak (TTP), peak density (PD), and the area under the curve (AUC) were assessed and the ratios reference ROI/target ROIs were calculated. RESULTS: In the embolized tumor, the 2D-PA ratios changed significantly (p < 0.05) after DEB-TACE, whereas no significant change was observed for non-target liver parenchyma (p > 0.05). PDtumor/PDinflow differed significantly to PDparenchyma/PDinflow pre-DEB-TACE (p < 0.0001), likewise AUCtumor/AUCinflow to AUCparenchyma/AUCinflow (p < 0.0001) with higher values in tumor tissue. The post-DEB-TACE ratios of AUC decreased significantly in the tumor tissue compared to the non-target liver parenchyma (p < 0.05). CONCLUSION: 2D-PA offers an objective approach to quantify the immediate perfusion reduction of embolized tumor tissue following DEB-TACE and may therefore be used to monitor peri-interventional stasis and to quantify technical success.