Regensburg Pediatric Appendicitis

This repository holds the data from a cohort of pediatric patients with suspected appendicitis admitted with abdominal pain to Children’s Hospital St. Hedwig in Regensburg, Germany, between 2016 and 2021. Each patient has (potentially multiple) ultrasound (US) images, aka views, tabular data comprising laboratory, physical examination, scoring results and ultrasonographic findings extracted manually by the experts, and three target variables, namely, diagnosis, management and severity.

Characteristics
Tabular, Image
Subject Area
Health and Medicine
Associated Tasks
Classification

Attribute Type
--
# Instances
782
# Attributes
54

Info

This dataset was acquired in a retrospective study from a cohort of pediatric patients admitted with abdominal pain to Children’s Hospital St. Hedwig in Regensburg, Germany. Multiple abdominal B-mode ultrasound images were acquired for most patients, with the number of views varying from 1 to 15. The images depict various regions of interest, such as the abdomen’s right lower quadrant, appendix, intestines, lymph nodes and reproductive organs. Alongside multiple US images for each subject, the dataset includes information encompassing laboratory tests, physical examination results, clinical scores, such as Alvarado and pediatric appendicitis scores, and expert-produced ultrasonographic findings. Lastly, the subjects were labeled w.r.t. three target variables: diagnosis (appendicitis vs. no appendicitis), management (surgical vs. conservative) and severity (complicated vs. uncomplicated or no appendicitis). The study was approved by the Ethics Committee of the University of Regensburg (no. 18-1063-101, 18-1063_1-101 and 18-1063_2-101) and was performed following applicable guidelines and regulations.


Introductory Paper

Interpretable and Intervenable Ultrasonography-based Machine Learning Models for Pediatric Appendicitis

By Ricards Marcinkevics, Patricia Reis Wolfertstetter, Ugne Klimiene, Ece Ozkan, Kieran Chin-Cheong, Alyssia Paschke, Julia Zerres, Markus Denzinger, David Niederberger, S. Wellmann, C. Knorr, Julia E. Vogt. 2023

Published in Medical Image Analysis

Provided by
University of California, Irvine


Creators
  • Ricards Marcinkevics
  • Patricia Reis
  • Ugne Klimiene
  • Ece Ozkan
  • Kieran Chin-Cheong
  • Alyssia Paschke
  • Julia Zerres
  • Markus Denzinger
  • David Niederberger
  • S. Wellmann
  • C. Knorr
  • Julia E.

DOI

10.5281/zenodo.7669442

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Features

Attribute Name Role Type Demographic Description Units Missing Values
Age Feature Continuous Age Obtained from the date of birth years yes
BMI Feature Continuous Measures body fat; patient's weight divided by the square of the height yes
Sex Feature Categorical Sex Registered gender yes
Height Feature Continuous Patient's height yes
Weight Feature Integer Patient's weight yes
Length_of_Stay Feature Integer Length of the stay in the hospital yes
Management Target Categorical (conservative, primary surgical, secondary surgical, simultaneous appendectomy) Management of the patient assigned by a senior pediatric surgeon: operative (appendectomy: laparoscopic, open or conversion) or conservative (without antibiotics). In case of the secondary surgery after prior stay, the patient was labelled as operatively managed. yes
Severity Target Categorical (uncomplicated, complicated) Severity of appendicitis: uncomplicated: subacute/ catharral, fibrosis; phlegmonous or complicated: gangrenous, perforated, abscessed yes
Diagnosis_Presumptive Other Binary Patient's suspected diagnosis yes
Diagnosis Target Binary Patient's diagnosis, histologically confirmed for operated patients. Conservatively managed patients were labelled as having appendicitis if they had an AS or PAS of ≥ 4 and an appendix diameter of ≥ 6 mm yes
Alvarado_Score Feature Integer Patient's score according to the scoring system yes
Paedriatic_Appendicitis_Score Feature Integer Patient's score according to the scoring system yes
Appendix_on_US Feature Binary Detectability of the vermiform appendix during sonographic examination yes
Appendix_Diameter Feature Integer Maximal outer diameter of the appendix yes
Migratory_Pain Feature Binary Abdominal pain; usually starts in epigastrium and moves to the right lower quadrant yes
Lower_Right_Abd_Pain Feature Binary Right iliac fossa pain detected on palpation yes
Contralateral_Rebound_Tenderness Feature Binary A state in which pain of the contralateral side (usually, the right lower quadrant) is felt on the release of pressure (usually, in the left lower quadrant) over the abdomen yes
Coughing_Pain Feature Binary Abdominal pain by forced cough yes
Nausea Feature Binary Feeling of sickness/ejection of contents from stomach through the mouth yes
Loss_of_Appetite Feature Binary yes
Body_Temperature Feature Continuous Measured by a thermometer placed in the rectum or in the auditory canal yes
WBC_Count Feature Continuous The number of leucocytes in a unit volume of blood; inflammation parameter yes
Neutrophil_Percentage Feature Integer Mature WBC in the granulocytic series yes
Segmented_Neutrophils Feature Integer Most mature neutrophilic granulocytes present in circulating blood, increased during an inflammatory disorder yes
Neutrophilia Feature Categorical Relative neutrophilic leucocytosis, often a result of a bacterial infection yes
RBC_Count Feature Continuous The number of erythrocytes in a unit volume of blood yes
Hemoglobin Feature Continuous Hemoglobin level; a red protein in the red blood cells that contains iron and is responsible for transporting oxygen yes
RDW Feature Continuous A blood test that measures the differences in the volume and size of the erythrocytes yes
Thrombocyte_Count Feature Integer The number of platelets in a unit volume of blood yes
Ketones_in_Urine Feature Categorical Presence of ketone bodies in urine, e.g. in case of anorexia yes
RBC_in_Urine Feature Categorical Blood in urine yes
WBC_in_Urine Feature Categorical Leucocytes in urine, e.g., in case of infection yes
CRP Feature Integer Protein produced by the liver, elevated in case of inflammation, infection, or injury yes
Dysuria Feature Binary Pain or other difficulty during urination yes
Stool Feature Categorical Characteristics of bowel movements yes
Peritonitis Feature Categorical Spasm of abdominal wall muscles detected on palpation, usually a result of inflammation yes
Psoas_Sign Feature Categorical Abdominal pain produced by extension of the hip yes
Ipsilateral_Rebound_Tenderness Feature Categorical A state in which pain of the ipsilateral side is felt on the release of pressure over the abdomen yes
US_Performed Feature Categorical If an abdominal ultrasonography was performed or not yes
US_Number Feature Integer yes
Free_Fluids Feature Categorical Free fluids inside the abdomen yes
Appendix_Wall_Layers Feature Categorical Distribution and characteristics of appendix layers, e.g., irregular in case of an increasing inflammation yes
Target_Sign Feature Categorical Axial image of appendix with a fluid-filled center surrounded by echogenic mucosa and submucosa and hypoechoic muscularis yes
Appendicolith Feature Categorical Presence of fecalith in the appendix, e.g. acoustic shadow yes
Perfusion Feature Categorical Blood flow to the appendix wall yes
Perforation Feature Categorical Signs of appendix perforation in US yes
Surrounding_Tissue_Reaction Feature Categorical Inflammation signs in tissue (i.a. in omentum/fat tissue) surrounding appendix yes
Appendicular_Abscess Feature Categorical Appendiceal mass yes
Abscess_Location Feature Categorical Location of the abcess intraperitoneal yes
Pathological_Lymph_Nodes Feature Binary Enlarged and inflamed intra-abdominal lymph nodes yes
Lymph_Nodes_Location Feature Categorical The location of pathological lymph nodes in the abdomen yes
Bowel_Wall_Thickening Feature Binary Edema of the intestinal wall, > 2-3 mm for small bowel wall thickening yes
Conglomerate_of_Bowel_Loops Feature Binary Small intestine conglomerate as sign of intraperitoneal inflammation yes
Ileus Feature Categorical Sonographic signs of paralytic ileus (e.g., dilated intestinal loops, pendulum peristalsis or absence of peristalsis) yes
Coprostasis Feature Categorical Fecal impaction in the colon yes
Meteorism Feature Categorical Accumulation of gas in the intestine yes
Enteritis Feature Categorical Sonographic features of gastroenteritis, e.g. wall thickening of ileum, increased peristalsis yes
Gynecological_Findings Feature Categorical Gynaecological abnormalities, e.g. cysts, ovarial torsion yes