Radiomics model-based algorithm for preoperative prediction of pancreatic ductal adenocarcinoma grade.

Objective: To develop diagnostic radiomic model-based algorithm for pancreatic ductal adenocarcinoma (PDAC) grade prediction.

Methods: Ninety-one patients with histologically confirmed PDAC and preoperative CT were divided into subgroups based on tumor grade. Two histology-blinded radiologists independently segmented lesions for quantitative texture analysis in all contrast enhancement phases.

Distal pancreatectomy with resection of the celiac trunk, right or left hepatic artery without arterial reconstruction (extended DP-CAR).

Objective: To evaluate safety and postoperative outcomes of DP-CAR with resection of one of the lobar hepatic arteries without arterial reconstruction (extended DP-CAR).

Material And Methods: Perioperative data and survival after 7 extended DP-CARs R0 were retrospectively analyzed. Arterial blood flow in the liver was assessed using intraoperative ultrasound and postoperative CT angiography.

Computed tomography-based radiomics approach in pancreatic tumors characterization.

Radiomics (or texture analysis) is a new imaging analysis technique that allows calculating the distribution of texture features of pixel and voxel values depend on the type of ROI (3D or 2D), their relationships in the image. Depending on the software, up to several thousand texture elements can be obtained. Radiomics opens up wide opportunities for differential diagnosis and prognosis of pancreatic neoplasias.

[Effect of morphological state of pancreatic parenchyma on the long-term outcome of surgery for chronic pancreatitis].

Objective: To determine the effect of baseline morphological state of the pancreas on the long-term outcomes of duodenum-preserving pancreatic head resection (DPPHR).

Material And Methods: The study included 104 patients with chronic pancreatitis (CP), who underwent DPPHR in 2014-2019. Pain syndrome, exocrine and endocrine pancreatic insufficiency and quality of life (QoL) were assessed in long-term postoperative period.

Pancreas-preserving duodenal resections pancreatoduodenectomy for groove pancreatitis. Should we revisit treatment algorithm for groove pancreatitis?

Background: The management of cystic dystrophy of the duodenal wall (CDDW), or groove pancreatitis (GP), remains controversial. Although pancreatoduodenectomy (PD) is considered the most suitable operation for CDDW, pancreas-preserving duodenal resection (PPDR) has also been suggested as an alternative for the pure form of GP (isolated CDDW). There are no studies comparing PD and PPDR for this disease.

[Long-term outcomes of pancreatic head resection in chronic pancreatitis].

Objective: To analyze the effect of timing of surgery, quality of resection and removal of MPD-stones on long-term results of duodenum-preserving pancreatic head resection (DPPHR).

Material And Methods: The study included 110 patients with chronic pancreatitis (CP) who underwent DPPHR in 2014-2019. Evaluation of long-term outcomes included pain syndrome severity, exocrine and endocrine insufficiency and quality of life (QoL).

Reproducibility of CT texture features of pancreatic neuroendocrine neoplasms.

Purpose: To evaluate the reproducibility of textural features of pancreatic neuroendocrine neoplasms (PNENs), obtained under various CT-scanning conditions.

Methods And Materials: We included 12 patients with PNENs and 2 contrast enhanced CT (CECT): 1) from our center according to standard CT-protocol; 2) from another institution. Two radiologists independently segmented the entire neoplasm volume using a 3D region of interest by LIFEx application on the arterial phase and then copied it to the other phases.

[Contrast-enhanced computed tomography in evaluation of pancreatic stump volume in pancreaticoduodenectomy].

Objective: To analyze the role of contrast-enhanced computed tomography in evaluation of pancreatic stump volume for prediction of significant pancreatic fistula.

Material And Methods: A retrospective analysis enrolled 99 patients. Patients were divided into 2 groups depending on the course of postoperative period and development of clinically significant pancreatic fistula.

Low radiation dose 256-MDCT angiography of the carotid arteries: effect of hybrid iterative reconstruction technique on noise, artifacts, and image quality.

Unlabelled: To evaluate the effect of hybrid iterative reconstruction on qualitative and quantitative parameters at low dose carotid CTA.

Materials And Methods: 44 consecutive patients were enrolled in the study. First group (n=22) was examined under 120 kV 250 mAs, second group (n = 22) - 100 kV 250 mAs.

Virtual modeling of robot-assisted manipulations in abdominal surgery.

Aim: To determine the effectiveness of using multidetector computed tomography (MDCT) data in preoperative planning of robot-assisted surgery.

Methods: Fourteen patients indicated for surgery underwent MDCT using 64 and 256-slice MDCT. Before the examination, a specially constructed navigation net was placed on the patient's anterior abdominal wall.