DICOM Research Papers - Academia.edu (original) (raw)

Currently, the information and communication technology is developing very rapidly. A lot of hospitals have digital radio diagnostic modality that supports the DICOM protocol. However, the implementation of integrated radiology... more

Currently, the information and communication technology is developing very rapidly. A lot of hospitals have digital radio diagnostic modality that supports the DICOM protocol. However, the implementation of integrated radiology information system with medical imaging equipment is still very limited until now, especially in developing countries like Indonesia. One of the obstacles is high prices for radiology information system. Whereas the radiology information systems can be widely used by radiologists to provide many benefit for patient, hospitals, and the doctors themselves. This study aims to develop a system that integrates the radiology administration information system with radio diagnostic imaging modalities. Such a system would give some benefits that the information obtained is more accurate, timely, relevant, and accelerate the workflow of healthcare workers. This research used direct observation method to some hospital radiology unit. Data was collected through interviews, questionnaires, and surveys directly to some of the hospital's radiology department in Jakarta, and supported by the literature study. Based on the observations, the prototype of integrated patient registration systems in radiology unit is developed and interfaced to imaging equipment radio diagnostic using standard DICOM communications. The prototype of radiology patient registration system is tested with the modality MRI and CT scan.

Imaging and Communications in Medicine (DICOM) standard is an image archive system which allow itself to serve as an image manager that control the acquisition, retrieval, and distributions of medical images within entire picture... more

Imaging and Communications in Medicine (DICOM) standard is an image archive system which allow itself to serve as an image manager that control the acquisition, retrieval, and distributions of medical images within entire picture archiving and communication The DICOM technology is suitable when sending images between different departments within hospitals or/and other hospitals, and consultant. However, some hospitals lack the DICOM system. In this paper proposed algorithm view and converts .dcm image files jpeg2000 standard image, whereby the image should be viewable, using with common image viewer programs. Now this files are ready to transfer via internet and easily viewable on normal computer systems using JPEG2000 viewer or on Linux platform and Windows platform.

A plethora of digital ECG formats have been proposed and implemented. This heterogeneity hinders the design and development of interoperable systems and entails critical integration issues for the healthcare information systems. This... more

A plethora of digital ECG formats have been proposed and implemented. This heterogeneity hinders the design and development of interoperable systems and entails critical integration issues for the healthcare information systems. This paper aims at performing a comprehensive overview on the current state of affairs of the interoperable exchange of digital ECG signals. This includes 1) a review on existing

Tele-radiology is one of the most evolved areas of telemedicine. The DICOM standard (digital imaging and communications in medicine) is commonly used for this, but it is not sufficient in all aspects. The mechanism presented in this paper... more

Tele-radiology is one of the most evolved areas of telemedicine. The DICOM standard (digital imaging and communications in medicine) is commonly used for this, but it is not sufficient in all aspects. The mechanism presented in this paper allows the dynamic assignment of an IP address and automatic configuration of devices connected over the network. When DICOM was written only

In this paper we present novel methods and algorithms for augmenting a foot 3D model in realtime. By overlaying reconstructed anatomical contents onto user’s field of view via an augmented reality visualization platform, the virtual... more

In this paper we present novel methods and
algorithms for augmenting a foot 3D model in realtime.
By overlaying reconstructed anatomical
contents onto user’s field of view via an augmented
reality visualization platform, the virtual
Biomedical Computer Aid Design (BioCAD)
objects, appear geo-referenced to the real
environment, help physicians and/or students to
improve the overall image of the bone condition and
anatomical structures of patients. Moreover, we
explain the principle of marker and markerless
Augmented Reality (AR) and interactive integration
of virtual objects in the actual scene by
development of a PC and mobile AR applications.
In particular, this should be a powerful tool to
understand the complex 3D nature and structure of
3D foot bones, joints and assemblies.

Medical (DICOM) images can be updated multiple times after they are generated. Long term management of different versions of a DICOM object is increasingly important to any image storage. Traditional Picture Archive and Communication... more

Medical (DICOM) images can be updated multiple times after they are
generated. Long term management of different versions of a DICOM object is
increasingly important to any image storage. Traditional Picture Archive and
Communication System (PACS) treats DICOM files as read-only object.
Changing a few attributes of a DICOM file leads to either a second binary object
or modifications to the metadata tables. Very often, the change history is lost.
Multiple versions of a DICOM object cannot coexist in the same DICOM storage.
In this paper, we introduce a version management system for DICOM
objects. We define a Multiversion DICOM Object (MDO) that manages all
versions of a DICOM object. This object is initialized from the original DICOM
object and it organizes subsequent updates as editing histories of different
versions of the original. The editing history are human-readable and can be
managed along with the rest of the DICOM metadata. We can build
versionspecific
index on the metadata such that one can query for DICOM attributes of a
particular version. The editing history is mapped into binary segments and
assembly instructions such that query for any version of a DICOM binary runs at
the optimal speed. We describe how this system can be implemented in an
object-relational database management system (DBMS).
The new system reduces storage footprint, simplifies data management,
improves system performance and creates comprehensive auditing trials. PACS
implemented on top of this system can fully conform to the DICOM standard.
With this system, we demonstrate that managing DICOM object as mutable,
evolving content can best meet the challenges of the increasingly complex
imaging environment.

El presente artículo propone una metodología para el diseño y la fabricación de implantes craneales a partir de imágenes DICOM y tecnologías CAD/CAM/CNC. Esta metodología parte de las Tomografías Axiales Computarizadas (TAC) de la cabeza... more

El presente artículo propone una metodología para el diseño y la fabricación de implantes craneales a partir de imágenes DICOM y tecnologías CAD/CAM/CNC. Esta metodología parte de las Tomografías Axiales Computarizadas (TAC) de la cabeza del paciente, con las cuales se lleva a cabo la reconstrucción tridimensional del cráneo. Luego, en el sistema CAD se reconstruye el implante variando la técnica empleada dependiendo de la región del cráneo con defecto o trauma. Una vez obtenido el modelo, se diseña el montaje y se fabrica el implante con soporte en tecnología CAM/CNC. MSC: 68Nxx, 68U07

Electronic Health Record (EHR) is a major component of the health informatics domain. An important part of the EHR is the medical images obtained over a patient's lifetime and stored in diverse PACS. The vision presented in this paper is... more

Electronic Health Record (EHR) is a major component of the health informatics domain. An important part of the EHR is the medical images obtained over a patient's lifetime and stored in diverse PACS. The vision presented in this paper is that future medical information systems will convert data from various medical sources -- including diverse modalities, PACS, HIS, CIS, RIS, and proprietary systems -- to HL7 standard XML documents. Then, the various documents are indexed and compiled to EHRs, upon which complex queries can be posed. We describe the conversion of data retrieved from PACS systems through DICOM to HL7 standard XML documents. This enables the EHR system to answer queries such as 'Get all chest images of patients at the age of 20-30, that have blood type 'A' and are allergic to pine trees', which a single PACS cannot answer. The integration of data from multiple sources makes our approach capable of delivering such answers. It enables the correlation of medical, demographic, clinical, and even genetic information. In addition, by fully indexing all the tagged data in DICOM objects, it becomes possible to offer access to huge amounts of valuable data, which can be better exploited in the specific radiology domain.

Neuroanatomy is the section of anatomy that many students find especially challenging. This phenomenon was defined by Ralph F. Jozefovicz as “Neurophobia”. To master neuroanatomy the learner must possess strong spatial mapping skills in... more

Neuroanatomy is the section of anatomy that many students find especially challenging. This phenomenon was defined by Ralph F. Jozefovicz as “Neurophobia”. To master neuroanatomy the learner must possess strong spatial mapping skills in order to visualise complex neuroanatomical structures and understand how they relate to each other. Textbooks and anatomical atlases are currently the most commonly used resources for teaching neuroanatomy. However, these have some major limitations due to their two-dimensional nature. Cadaveric dissections, which are currently considered a gold standard for studying anatomy, present some serious challenges, from both practical and ethical angles. There is growing demand for neurologists and specialists in adjacent disciplines, and as such, neurophobia amongst medical and life-science students is a serious issue.
Using emerging technologies such as 3D and augmented reality (AR) for teaching anatomy (including neuroanatomy) has been proven to be effective in improving learning outcomes of the students. These technologies provide elements of novelty, which helps make the learning experience more exciting and enjoyable. This, in turn, increases students’ motivation and, subsequently, their academic performance.
Building upon previous research, the decision was made to develop an AR and 3D-based mobile application which could be used as a learning aid by anyone willing to master neuroanatomy. The app features AR, 3D and 2D scenes, as well as a short quiz. AR functionality relies on an accompanying booklet, which contains AR-targets.
The application was tested by twelve individuals that were recruited through the XRDRN network (www.xrdrn.org/) and social media (e.g. linkedin.com, twitter.com). Overall, findings suggest the high usability of the application. The study results also showed significant improvement of the neuroanatomy knowledge among the participants.
While this study has some limitations, the developed application has the potential to become a useful learning tool for anyone seeking to master neuroanatomy.

We defined a simple addressing string to reference the information contained within a DICOM [1] object. We have proved that there is a single representation for any content expressible by this addressing string. We also proved that a... more

We defined a simple addressing string to reference
the information contained within a DICOM [1]
object. We have proved that there is a single
representation for any content expressible by this
addressing string. We also proved that a valid
addressing string cannot be decomposed into a finite
number of addressing strings of different forms. The
two properties, uniqueness and atomicity, enable a
number of optimizations in addressing string
computations. In applications where a set of
predefined addressing strings exists, implementation
with our optimizations can provide significant time
savings (94 times) when compared to a general
purpose XML-based implementation. In addition, the
addressing string isolates the complexity of DICOM
attribute semantics from data exchange such that
DICOM application interfaces can be significantly
simplified.

The imminent evolution in the field of medical imaging, telehealth and teleradiology services has been on a significant rise with a dire need for a proficient structure for the compression of a DICOM (Digital Imaging and Communications... more

The imminent evolution in the field of medical imaging, telehealth and teleradiology services has been on a
significant rise with a dire need for a proficient structure for the compression of a DICOM (Digital Imaging and Communications in Medicine) standard medical image obtained through various modalities, with clinical relevance and digitized clinical data, and various other diagnostic phenomena and the progressive transmission of such a medical image over varying bandwidths. The data loss redundancy during the process of compression is to be maintained below the alarming level, meaning it is to be under scanner without the loss of data/information. In this paper we present an efficient time bound algorithm that utilizes a process flow wherein multiple ROI sectors as well as the Non-ROI sector of the DICOM image are considered in the algorithmic machine and the compression is done based upon a hybrid compression algorithm by LZW & SPIHT encoder & decoder machines. The paper provides a magnitude of the overall compression ratio involved in thus compressing the DICOM standard image. It also provides a brief description about the PSNR values obtained after suitably compressing the image. We analyze the various encoder scenarios and have projected a suitable hybrid lossless compression algorithm that helps in the retrieval of the data/information related to the image. This paper also discusses around the Integer Wavelet Transforms used in order to encode the image and
thus parameterize various metrics related to the transform function provided by IWT. It is seen that we could achieve a compression ratio value specific to 92% thereby swaying with a large deviation in the considered metric.

HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad,... more

HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

Information sharing between the RIS, HIS, and reporting systems is addressed by HL-7 standard designed specifically to facilitate text-based information systems’ communication. DICOM, on the other hand, was designed to address the sharing... more

Information sharing between the RIS, HIS, and reporting systems is addressed by HL-7 standard designed specifically to facilitate text-based information systems’ communication. DICOM, on the other hand, was designed to address the sharing of images between different vendors' equipment with little regard for sharing patient information. Hence, another application is required to broker the communication between the PACS and the information systems. Since patient and examination information changes frequently, it is critical to keep the databases involved in transactions synchronized. MRIMS is a complete solution that synchronizes medical imaging and clinical information workflow, by means of creating, viewing and distributing a report, regarding a patient and his/her medical examinations. It ensures the integration between HL7 and DICOM standards by implementing a new protocol model for communication compatibility between those two standards. Specifically designed for the imaging centre or hospital enterprise, this integrated solution will automate processes at every point of patient search, image acquisition, diagnostic reading, and results delivery.

Digital Imaging and Communications in Medicine (DICOM) standard is an image archive system which allow Itself to serve as an image manager that control the acquisition, retrieval, and distributions of medical images within entire picture... more

Digital Imaging and Communications in Medicine (DICOM) standard is an image archive system which allow Itself to serve as an image manager that control the acquisition, retrieval, and distributions of medical images within entire picture archiving and communication systems (PACS).The DICOM technology is suitable when sending images between different departments within hospitals or/and other hospitals, and consultant. However, some hospitals lack the DICOM system. The image should be viewable, with common image viewing programs and its size should be small. So, our objective is to first analysing the DICOM file format, then find the file length. The length of the file is important information enable to proceed further with obtaining the image. The file length determines the image size and so it could be easily extracted. Useful pixel data and patient data are extracted. Pixel data are arranged in a square matrix, it is now ready to be saved in common standard image format like bmp, p...

Otsu's criteria is a popular image segmentation approach that selects a threshold to maximise the inter-class variance of the distribution of intensity levels in the image. The algorithm finds the optimum threshold by performing an... more

Otsu's criteria is a popular image segmentation approach that selects a threshold to maximise the inter-class variance of the distribution of intensity levels in the image. The algorithm finds the optimum threshold by performing an exhaustive search, but this is time-consuming, particularly for medical images employing 16-bit quantisa-tion. This paper investigates particle swarm optimisation (PSO), Dar-winian PSO and Fractional Order Darwinian PSO to speed up the algorithm. We evaluate the algorithms in medical imaging applications concerned with volume reconstruction, with a particular focus on addressing artefacts due to immobilisation masks, commonly worn by patients undergoing radiotherapy treatment for head-and-neck cancer. We find that the Fractional-Order Darwinian PSO algorithm outperforms other PSO algorithms in terms of accuracy, stability and speed which makes it the favourite choice when the accuracy and time-of-execution are a concern.

Current research studies have emphasized various barriers in electronic health record (EHR) adoptability and interoperability. Lack of EHR adaptability has a negative impact on medical decision making (DM). Even though through EHR... more

Current research studies have emphasized various barriers in electronic health record (EHR) adoptability
and interoperability. Lack of EHR adaptability has a negative impact on medical decision making (DM).
Even though through EHR practitioners can manage information overload, it is underutilized.
Consequently, medical errors as well as healthcare (HC) costs increase. Up-to-date research on
application of knowledge management (KM) to enhance EHR adoptability and interoperability is limited.
On the contrary, researchers focus on adapting electronic patient record (EPR) within KM. HC KM is a
very important tool to facilitate interoperability and adaptability of EHR. Its advantages have been proven
in other areas. This paper proposes a solution - a conceptual HC KM infrastructure for EHR
interoperability and adaptability. This solution reduces EHR adaptability barriers by improving
interoperability and enhancing user interaction using KM tools within an e-health environment.
Keywords: Healthcare; Electronic Health Record (EHR); Electronic Patient Record (EPR); Knowledge
Management; Decision-making; EHR Interoperability; EHR Adaptability.