Ronald Booij

Radiographer, Research and Innovation unit CT

Curriculum vitae

All posts of Ronald Booij

Efficacy of a dynamic collimator for overranging dose reduction in a second- and third-generation dual source CT scanner

posted by Ronald Booij | May 31, 2017
Ronald Booij

The purpose of this study was to assess the efficacy of the renewed dynamic collimator in a third-generation dual source CT (DSCT) scanner and to determine the improvements over the second-generation scanner. Read more

Cardiovascular imaging in pediatric patients using dual source CT

posted by Ronald Booij | Nov 20, 2015
Ronald Booij

Cardiovascular CT acquisition protocol optimization in pediatric patients, including newborns is often challenging. Read more

Iterative reconstruction

posted by Ronald Booij | Sep 30, 2015
Ronald Booij

Iterative reconstruction has been made available for practical use in the last few years. Iterative reconstruction techniques (IR) can increase image quality with equal dose or potentially get similar image quality as in filtered back-projection (FBP) with less dose. Read more

Case: Transposition of the Great Arteries (TGA) in a 3-year-old boy

posted by Ronald Booij | Feb 6, 2015
Ronald Booij

This article will focus on a challenging cardiac case: the transposition of the Great Arteries (TGA) in a 3-year-old boy. Read more

Case: Cardiopulmonary Abnormalities in a 6-month-old girl on an Extracorporeal Membrane Oxygenation

posted by Ronald Booij | Dec 2, 2014
Ronald Booij
  • Figure 1: Images showing the topogram, prospective ECG (scan 1), and flash mode (scan 2)

This article will focus on Cardiopulmonary Abnormalities in a 6-month-old girl on an Extracorporeal Membrane Oxygenation (ECMO) Machine. Read more

Improvements in Third Generation Dual-Source CT and Benefits for Thoracic and Cardiac CT in Adult and Pediatrics

posted by Ronald Booij | Aug 19, 2014
Ronald Booij

This article will highlight the differences between SOMATOM Definition Flash and SOMATOM Force. The benefits of the (turbo) flash mode and the improvements for instance in pediatric CTA will be discussed. Read more

When to use what!? The ‘Flash’ mode

posted by Ronald Booij | Nov 27, 2013
Ronald Booij

When should you choose the high pitch mode? What are the benefits and downsides? How will this affect your protocol set-up? Get tips and tricks in this article. Read more

Case: DE lung 2 year old child

posted by Ronald Booij | Nov 11, 2013
Ronald Booij
  • Protocol_DE lung 2 year old child
  • Fig. 1 DE lung 2 year old child
  • Fig. 2 DE lung 2 year old child
  • Fig. 3 DE lung 2 year old child

This exam will save the young child a lot of time and more intensive exams, like for instance invasive angiography or scintigraphy. Read more

Case: ALCAPA 3 month old boy

posted by Ronald Booij | Nov 11, 2013
Ronald Booij
  • ALCAPA 3 month old boy
  • Fig. 1 ALCAPA 3 month old boy
  • Fig. 2 ALCAPA 3 month old boy
  • Fig. 3 ALCAPA 3 month old boy

SAFIRE already lowered the dose with 30%, the use of CARE kV allowed further dose reduction while image quality is sustained. Read more

Case: Aortic coarctation in 7 month old child

posted by Ronald Booij | Nov 7, 2013
Ronald Booij
  • Cases_Booij_Aoritc coarctation 7mo child
  • Fig. 1
  • Fig. 2
  • Fig. 3

With the help of SAFIRE, dose optimization slider 11 (only angio) and a very strong dose curve we received an optimal image quality with the lowest possible dose. Read more

Case: Flash soronary CTA in 43 year old female

posted by Ronald Booij | Nov 6, 2013
Ronald Booij
  • Cases_Booij_Flash CCTA 43Y female
  • Fig. 1
  • Fig. 2
  • Fig. 3

Because of a stable and very low heart rate (average 44 BPM), we chose to perform a high pitch CTA of the coronaries, which will give you good image quality, without stack artifacts like in prospective mode . Read more

Case: Dual energy CTA of a 4 months old child

posted by Ronald Booij | Nov 5, 2013
Ronald Booij
  • Protocol Dual Energy CTA
  • DSCT Dual Energy CTA
  • DSCT Dual Energy CTA
  • DSCT Dual Energy CTA

CTA in children is often performed with 70-80kV. This will give the lowest possible dose. In this case we choose to perform a DE scan (80/Sn140KV) which will result in a higher dose. Read more

Case: CTA thorax 4 months old child

posted by Ronald Booij | Nov 3, 2013
Ronald Booij
  • Cases_Booij_CTA_Thorax_4_months_old_child_table
  • Fig. 1
  • Fig. 2
  • Fig. 3

Baby of 4 months was sent in for a CTA of the thorax. Because of the free breathing of the child, we chose to do a high pitch (Flash) CT of the thorax with intravenous contrast. Read more

Case: Dilatation Pulmonary trunk

posted by Ronald Booij | Nov 1, 2013
Ronald Booij
  • Cases_Booij_Dilatation_Pulmonary_trunk_table
  • Fig. 1
  • Fig. 2
  • Fig. 3

Patient presents with severe common pulmonary artery dilatation. We injected a larger bolus then normal for CCTA, because of the big volume of the Pulmonary trunk and we wanted to enhance all vessels in the thorax. Read more

Case: Tumor of the left kidney

posted by Ronald Booij | Oct 30, 2013
Ronald Booij
  • Cases_Booij_Tumor_of_the_left_kidney_table
  • Fig. 1
  • Fig. 2
  • Fig. 3

Patient presented with pain in the back and occasionally dark urine. Heterogeneous mass in the left kidney, suspected for oncocytoma or a renal cell carcinoma. Read more

Practical use of the CARE kV mode

posted by Ronald Booij | Sep 12, 2013
Ronald Booij

CARE kV can be used in three different modes. Here we describe how the modes work and the ways in which you can adapt CARE kV to your preferences and for your benefit. Read more

CARE kV principals

posted by Ronald Booij | Aug 12, 2013
Ronald Booij

What mAs do we need for each kV to maintain image quality for every type of scan? CARE kV allows us to adjust levels manually and/or automatically. Read more

Case: CTA thorax of baby < 6 months with suspected congenital cystic adenomatoid malformation (CCAM)

posted by Ronald Booij | Jul 15, 2013
Ronald Booij
  • Fig. 1 Cystic lesion in the left lower lobe
  • Fig. 2 Cystic lesion in the left lower lobe

A baby of < 6 months, with a known antenatal congenital cystic adenomatoid malformation (CCAM) left measuring 2.5 cm in diameter, was sent for a CTA of the thorax. Read more

CARE Dose 4D and Dose Curves

posted by Ronald Booij | Apr 5, 2013
Ronald Booij

Tips and tricks are provided for a possible setup of scan settings for different body regions in adult but especially in child protocols. Read more

Easy use of FAST Adjust

posted by Ronald Booij | Feb 14, 2013
Ronald Booij

This section provides tips and tricks for the configuration of FAST Adjust. Read more

New applications and technology in DSCT: How to take full advantage (3/3) – CARE

posted by Ronald Booij | Dec 12, 2012
Ronald Booij

In this section, tips and tricks are shared for CARE applications. Read more

New applications and technology in DSCT: How to take full advantage (2/3) – FAST

posted by Ronald Booij | Nov 21, 2012
Ronald Booij

In this part, tips and tricks are provided for FAST applications. Read more

New applications and technology in DSCT: How to take full advantage (1/3) – Introduction

posted by Ronald Booij | Nov 21, 2012
Ronald Booij

In this review, these applications will be explained from the viewpoint of a radiology technologist. Enriched with tips and tricks from daily practice, this will be especially valuable for other CT technologists. Read more

Case: Dual Energy Thorax

posted by Ronald Booij | May 18, 2012
Ronald Booij
  • Protocol Dual Energy Thorax
  • Fig 1 VRT showing LSIV
  • Fig 2 VRT showing LSIV
  • Fig 3 VRT showing LSIV

Dual Energy CTA will help you in making the diagnosis. It will show perfusion defects when a clot is occluding the thoracic vessel(s). Read more

Case: Cystic Fibrosis

posted by Ronald Booij | Mar 12, 2012
Ronald Booij
  • protocol_case_cystic_fibrosis

Major study in context CF. Air trapping right; reactive lymphadenopathy bilaterally. Because of adaptive dose shield and the possibility to scan with low kV, a very low dose is possible. Compared with a previous investigation, this case shows a disappearance of the upper lobe atelectasis, iIncreased air trapping on the … Read more

Case: Coronary and aortic CTA at a 7-week old boy: DLP5

posted by Ronald Booij | Jan 23, 2012
Ronald Booij
  • case_protocol_7wk-old-boy-coronary-aortic
  • Fig. 1 VRT of the VSD & Aortic arch
  • Fig. 2 VRT of the VSD & Aortic arch
  • Fig. 3 MIP reconstruction showing the presence of the coronaries

The scan was performed with bolustracking technique. The reason was that the i.v. cannula was placed on the forehead, allowing the use of a manual delay is not recommended. Read more

Case: Familial Aortic Aneurysm

posted by Ronald Booij | Dec 27, 2011
Ronald Booij
  • case_protocol_Familial Aortic Aneurysm
  • Fig. 1 VRT of total aorta
  • Fig. 2 VRT of total aorta
  • Fig. 3 VRT of total aorta

CT examination in aorta totalis protocol. Dose was around 1.1mSv and also because of the high pitch mode, contrast media material was saved. Read more

Case: Thorax of 7-year old with Flash

posted by Ronald Booij | Dec 12, 2011
Ronald Booij
  • case_protocol_Thorax-of-7-year-old-with-Flash
  • Fig. 1 VRT shows no motion and nice visualization of lung and vessels
  • Fig. 2 Fused MPR and VRT shows no motion and nice visualization of lung and vessels
  • Fig. 3 Fused MPR and VRT shows no motion and nice visualization of lung and vessels

A very challenging case, which can be made easy by using the flash technique. Read more

Case: Low dose Choan Atresia in 3-day-old girl

posted by Ronald Booij | Nov 28, 2011
Ronald Booij
  • Low dose Choan Atresia in 3-day-old girl
  • Fig. 1 VRT shows agenesis of right nostril
  • Fig. 2 VRT image fused with MPR
  • Fig. 3 Aplasia of the entire right nasal passage without etmoid cells and conchae at all levels

Scan was performed without anaesthesia in a vacuum mattress with low pitch and rotation time of 1 second. Read more

Case: Dual Source CT for the evaluation of coronary artery abnormalities previous to reoperation of the aortic arch and known aorta dissection

posted by Ronald Booij | Aug 3, 2010
Ronald Booij
  • Fig. 1b Thorax aorta dissection
  • Fig. 2 Thorax aorta dissection

This case shows the enormous capability of the Dual Source CT and its unprecedented opportunities to get the best diagnostic result. Read more




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