This paper was presented in the 2024 ARN National Conference in Abuja, Nigeria.
It was a review paper on the application of artificial intelligence in medicine with focus on Radiology.
ARTIFICIAL INTELLIGENCE: AN EMERGING TECHNOLOGY IN IMAGING
1. ARTIFICIAL INTELLIGENCE: AN
EMERGING TECHNOLOGY IN
IMAGING
BELLO ISAH UMAR
DEPARTMENT OF RADIOLOGY
FEDERAL TEACHING HOSPITAL
BIRNIN KEBBI, KEBBI STATE
NOVEMBER, 2024.
2. TABLE OF CONTENTS
• INTRODUCTION
• OBJECTIVES
• BENEFITS OF AI IN RADIOLOGY
• AI IN RADIOLOGY MODALITIES
• CONCLUSION
• LIMITATIONS
• RECOMMENDATIONS
• REFERENCES
3. INTRODUCTION
• Radiology, a central medical discipline that over the years witnessed
rapid evolution from x-rays to magnetic fields, film to function and now
into the new era of artificial intelligence, particularly with the advent of
deep learning approaches especially the convolutional neural networks.
• Radiology which serve as an eye of other departments is tasked with fast
patient throughput, reliability and accuracy of results that will aid in
patients diagnosis, decision making and treatment.
4. INTRODUCTION CONT’D
• A review of literatures in AI and radiology was performed. 109 papers
were searched for across PubMed, Google Scholar, Elsevier and
ScienceDirect. Careful review was made of 83 papers, 37 were excluded
due to limitations in accessing the Main PDF, 19 were also excluded due
date of publication before 2019 and 7 due to duplications. A total of 20
papers were included in this study.
5. • Video presentations on Youtube were also utilized from renowned sites like RSNA,
Mayo Clinic, ECR, AI NeuroCare, GE healthcare and Radiopedia
6. OBJECTIVES
• Clarify the importance of AI in radiology as an aiding tool rather than a
threat
• Discuss the success of AI in detection, characterization and image
interpretation in multidimensional imaging and mammography
• Discuss the best way to utilize AI in multidimensional imaging and
mammography screening
• Discuss the future and challenges faced by AI especially in developing
countries and the best ways to overcome those challenges
8. BENEFITS OF AI IN RADIOLOGY
• Early detection of lesions
• Enhanced accuracy
• Increased efficiency and patient throughput
• Research and innovation
• Reduced patient expenditure
• Personalized medicine
9. AI IN RADIOLOGY MODALITIES
• AI shows promising results in detection of additional lung nodules in
patients with complex lung diseases [1]
• It is also an important tool in detecting additional Intracranial lesions [2],
increased sensitivity and accuracy in diagnosing cerebral aneurysm [3]
and also reduces time of aneurysm detection [4]
• Overall increase in sensitivity, accuracy and reduced workflow is recorded
in AI-Based diagnosis in computed tomography [5,6,7,8]
10. AI IN RADIOLOGY MODALITIES
• There are many AI applications in the interpretive domains of lesion
detection and diagnosis, triage and density assessment and also
noninterpretive domains of risk assessment, image quality control, image
acquisition and dose reductions [9]
• In Mammography, AI proved to be an aiding tool by serving as the first
reader [10] and as such reduced the overall workload of breast
radiologists with increased diagnostic accuracy [5,11]
11. AI IN RADIOLOGY MODALITIES
• Researches on AI in MRI shows increased detection with Functional
connectivity MRI (FCM) algorithm [12], AI is also useful by accurately
locating and segmenting acute ischemic stroke lesions and the effects of
early rehabilitation [13]. By apply Faster R-CNN in evaluating
Circumferential Resection Margin status of rectal cancer patients in MRI,
it shows increased accuracy and sensitivity [14,15].
12. AI IN RADIOLOGY MODALITIES
• Deep transfer learning also shows accuracy of up to 98.01% in
differentiation of breast lesions on dynamic contrast enhanced MRI (DCE-
MRI) [16,17]
13. AI IN RADIOLOGY MODALITIES
• Increasing throughput while maintain excellence is one of the main goals
of every department and studies in nuclear medicine shows increased
throughput, AI-driven theranostic drug discovery and labelling, dose
precision and as such increased accuracy and dose reduction [18]
• AI also helps in assessing image quality while using FDG-18 in whole
body imaging [19]
• AI-radiomics is also an important tool in research [20]
14. LIMITATIONS
• AI works based on data it was trained with, so when integrated in a
different population it might cause inequities [5]
• Risk of leakage of patient data privacy which can be as a result of too
much access of AI models to patient data [5,6,7]
• Integration of AI to existing institution requires harmony between AI and
medical experts to avoid undermining patient care [6]
• The black box Enigma [18]
15. RECOMMENDATIONS
• Continued investment in AI research development
• Establishment of clear ethical guidelines and robust privacy frameworks
• Adequate training of healthcare personnel
• Collaborative approach including AI developers, healthcare personnel
and regulatory bodies
• Continues monitoring and evaluation of AI in clinical practice.
• Addressing data privacy concerns
16. CONCLUSION
• Artificial intelligence is a great tool for radiology departments especially
when utilized alongside radiologist and radiographers as it aids in
increased workflow, accuracy, sensitivity and decision making.
• Despite the enormous successes of AI in radiology, there are many
limitations related to integration into existing departments, upgrading AI
models, ethical considerations and data privacy concerns
• Increased investment in AI and training staff is of utmost importance for
proper utilization
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