DICOM format: definition and practical use in vascular medicine

The imaging is essential in vascular medicine for diagnosis and treatment. New imaging techniques since the advent of the spiral CT scan, invented by Hounsfield and Mac Cormack in 1972, brought us a revolution in whole medicine. This has been possible thanks to the development of new standards for imaging, particularly DICOM format. The aim of this paper is to explain what is DICOM and how we use it in vascular medicine. DICOM (Digital Imaging and Communications in Medicine standards) is an universal worldwide format used for medical imaging for all vascular investigation techniques: sonography, CT (computed tomography) and MRI (magnetic resonance imaging). This format allows 3D reconstruction of the patient's anatomy and gives access to quantification of all anatomical structures of the body, in particular of the vessels. It is achieved with dedicated software called DICOM browsers. These new tools of tridimensional (3D) modeling of the vessels bring us more accurate data of vascular anatomy. They make us enter in an era of new endoscopic and surgical techniques fully based on the image data, and so open the way for simulation, training and augmented reality.

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COMPARISON OF MULTI-SLICE SPIRAL CT AND MAGNETIC RESONANCE IMAGING FOR RENAL VASCULAR ANATOMY FOR LIVE DONORS.

Transplantation Journal ◽

10.1097/00007890-200407271-00234 ◽

2004 ◽

Vol 78 ◽

pp. 86

Author(s):

A A. Bhatti ◽

A Chugtai ◽

P Haslam ◽

D Talbot ◽

D Rix ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Vascular Anatomy ◽

Spiral Ct ◽

Resonance Imaging ◽

Live Donors ◽

Renal Vascular

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Observation of Large-Scale Structures in Unsaturated Materials

MRS Proceedings ◽

10.1557/proc-195-531 ◽

1990 ◽

Vol 195 ◽

Cited By ~ 2

Author(s):

J. E. Maneval ◽

M.J. Mccarthy ◽

S. Whitaker

Keyword(s):

Magnetic Resonance Imaging ◽

Nuclear Magnetic Resonance ◽

Large Scale ◽

Imaging Techniques ◽

Image Data ◽

Small Scale ◽

Resonance Imaging ◽

Specific System ◽

Large Scale Structures ◽

Scale Structures

ABSTRACTWe report here the use of nuclear magnetic resonance imaging in the observation of liquid-phase fraction distributions in a partially-wetted sample of glass beads. By combiningboth large- and small-scale imaging techniques, we can study the transition from local-averaged saturations to large-scale averaged saturations. The image data allows us to assess the utility of the large-scale measurements We comment on the reliability and generality of the measurements for our specific system.

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Imaging Modalities for Aortic Endografting

Journal of Endovascular Therapy ◽

10.1177/152660289700400203 ◽

1997 ◽

Vol 4 (2) ◽

pp. 111-123 ◽

Cited By ~ 12

Author(s):

Hugh G. Beebe

Keyword(s):

Image Processing ◽

Intravascular Ultrasound ◽

Imaging Techniques ◽

Aortic Surgery ◽

Three Dimensional ◽

Image Data ◽

Dimensional Accuracy ◽

Ct Scanning ◽

Spiral Ct ◽

Conventional Ct

One of the most fundamental and influential differences between conventional surgery and endovascular grafting for aortic aneurysm is the central role of imaging in every aspect of management. This review summarizes five imaging techniques for aortic endografting: intravascular ultrasound, contrast angiography, conventional computed tomography (CT), spiral CT with image processing, and magnetic resonance angiography (MRA). External ultrasound and intravascular ultrasound have important relevance to endovascular aortic surgery. Artifacts of arteriography include magnification, thrombus effect, foreshortening of tortuosity, loss of luminal detail, parallax error, and projection errors. Conventional CT scans have artifacts and difficulties also. Diameter measurement by CT suffers from methodology errors and observer variability. If conventional CT and angiography are used for endovascular aortic graft planning, both should be obtained since neither alone provides sufficient data. The use of spiral CT scanning and computerized image processing has clearly aided the preoperative definition of aneurysm morphology both in terms of dimensional accuracy and by adding diagnostic information. MRA is capable of producing three-dimensional images, axial sections, and longitudinal projections in any plane. It can detect blood flow without contrast medium, but gadolinium enhances MRA by avoiding the “signal dropout” artifact. Technology exists to provide new forms of imaging for endovascular surgery that combines three-dimensional models with on-line image data in a process called “data fusion.” This may offer improved ease and accuracy for conducting endovascular procedures in the future.

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Scientific aspect on Diet explained by Susrutha in Wound Healing

Journal of Ayurveda and Integrated Medical Sciences (JAIMS) ◽

10.21760/jaims.v2i05.10268 ◽

2017 ◽

Vol 2 (05) ◽

Author(s):

Manoj Kumar ◽

Amareshappa . ◽

Anjali Bharadwaj ◽

Shailaja S. V.

Keyword(s):

Wound Healing ◽

Mineral Metabolism ◽

Healing Process ◽

Surgical Techniques ◽

The Body ◽

Wound Healing Process ◽

Human Being ◽

Different Sources ◽

Scientific Aspect ◽

Important Branch

Wound healing has been the burning problem in a surgical practice because of a remarkable increase in the number of traumatic cases. A wound causes a number of changes in the body that can affect the healing process, including changes in energy, protein, carbohydrate, fat, vitamin and mineral metabolism. Various Ayurveda literatures, particularly, Sushruta Samhita, which is said to be an ancient textbook of surgery in Ayurveda, has mentioned about the diet for the person suffering from the wound, and the author said that diet plays a very important role in the wound healing process. Sushruta - The father of surgery has scientifically classified it in a systemic manner, whose wealth of clinical material and the principles of management are valid even today. Shalya Tantra (surgical branch in Ayurveda Science) is one of the important branch of Ayurveda, in which surgical and para-surgical techniques has described for management of various diseases. Vrana is the most important and widely described chapter of Shalya Tantra. Vrana (wound) is one of them, which have been managed by human being from starting of civilization. Under the circumstances, the first thing which the men came across was the injury from different sources which caused him the Vrana. Vrana is seen as debilitating and scaring disorder, usually seen affecting the human being at any age. Well balanced nutrition plays an essential role in the wound healing.

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Cross-sectional anatomy, computed tomography, and magnetic resonance imaging of the banded houndshark (Triakis scyllium)

Scientific Reports ◽

10.1038/s41598-020-80823-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Sang Wha Kim ◽

Adams Hei Long Yuen ◽

Cherry Tsz Ching Poon ◽

Joon Oh Hwang ◽

Chang Jun Lee ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

Soft Tissues ◽

Imaging Techniques ◽

Evolutionary Developmental Biology ◽

Phylogenetic Position ◽

Ct Scanner ◽

Resonance Imaging ◽

Cross Sectional

AbstractDue to their important phylogenetic position among extant vertebrates, sharks are an invaluable group in evolutionary developmental biology studies. A thorough understanding of shark anatomy is essential to facilitate these studies and documentation of this iconic taxon. With the increasing availability of cross-sectional imaging techniques, the complicated anatomy of both cartilaginous and soft tissues can be analyzed non-invasively, quickly, and accurately. The aim of this study is to provide a detailed anatomical description of the normal banded houndshark (Triakis scyllium) using computed tomography (CT) and magnetic resonance imaging (MRI) along with cryosection images. Three banded houndsharks were scanned using a 64-detector row spiral CT scanner and a 3 T MRI scanner. All images were digitally stored and assessed using open-source Digital Imaging and Communications in Medicine viewer software in the transverse, sagittal, and dorsal dimensions. The banded houndshark cadavers were then cryosectioned at approximately 1-cm intervals. Corresponding transverse cryosection images were chosen to identify the best anatomical correlations for transverse CT and MRI images. The resulting images provided excellent detail of the major anatomical structures of the banded houndshark. The illustrations in the present study could be considered as a useful reference for interpretation of normal and pathological imaging studies of sharks.

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Endoscopic Study of the Oral and Pharyngeal Cavities in the Common Dolphin, Striped Dolphin, Risso’s Dolphin, Harbour Porpoise and Pilot Whale: Reinforced with Other Diagnostic and Anatomic Techniques

Animals ◽

10.3390/ani11061507 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1507

Author(s):

Álvaro García de los Ríos y Loshuertos ◽

Marta Soler Laguía ◽

Alberto Arencibia Espinosa ◽

Francisco Martínez Gomariz ◽

Cayetano Sánchez Collado ◽

...

Keyword(s):

Oral Cavity ◽

Common Dolphin ◽

Resonance Imaging ◽

Pilot Whale ◽

Anatomical Structures ◽

Vascular Plexus ◽

Endoscopic Study ◽

Main Technique ◽

The Common ◽

Magnetic Resonance Imaging Mri

In this work, the fetal and newborn anatomical structures of the dolphin oropharyngeal cavities were studied. The main technique used was endoscopy, as these cavities are narrow tubular spaces and the oral cavity is difficult to photograph without moving the specimen. The endoscope was used to study the mucosal features of the oral and pharyngeal cavities. Two pharyngeal diverticula of the auditory tubes were discovered on either side of the choanae and larynx. These spaces begin close to the musculotubaric channel of the middle ear, are linked to the pterygopalatine recesses (pterygoid sinus) and they extend to the maxillopalatine fossa. Magnetic Resonance Imaging (MRI), osteological analysis, sectional anatomy, dissections, and histology were also used to better understand the function of the pharyngeal diverticula of the auditory tubes. These data were then compared with the horse’s pharyngeal diverticula of the auditory tubes. The histology revealed that a vascular plexus inside these diverticula could help to expel the air from this space to the nasopharynx. In the oral cavity, teeth remain inside the alveolus and covered by gums. The marginal papillae of the tongue differ in extension depending on the fetal specimen studied. The histology reveals that the incisive papilla is vestigial and contain abundant innervation. No ducts were observed inside lateral sublingual folds in the oral cavity proper and caruncles were not seen in the prefrenular space.

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A novel approach for Jatropha curcas seed health analysis based on multispectral and resonance imaging techniques

Industrial Crops and Products ◽

10.1016/j.indcrop.2020.113186 ◽

2021 ◽

Vol 161 ◽

pp. 113186

Author(s):

Clíssia Barboza da Silva ◽

Vitor de Jesus Martins Bianchini ◽

André Dantas de Medeiros ◽

Maria Heloisa Duarte de Moraes ◽

Agide Gimenez Marassi ◽

...

Keyword(s):

Jatropha Curcas ◽

Imaging Techniques ◽

Resonance Imaging ◽

Novel Approach ◽

Seed Health

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Magnetic Resonance Imaging in the Diagnosis of Disruption of the Posterior Tibial Tendon

Foot & Ankle ◽

10.1177/107110078700800307 ◽

1987 ◽

Vol 8 (3) ◽

pp. 144-147 ◽

Cited By ~ 26

Author(s):

Ian J. Alexander ◽

Kenneth A. Johnson ◽

Thomas H. Berquist

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Soft Tissues ◽

Diagnostic Technique ◽

Clinical Findings ◽

The Body ◽

Posterior Tibial Tendon ◽

Resonance Imaging ◽

Posterior Tibial ◽

Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI), a useful technique of studying soft tissues of the body, can be very effective in assessing the integrity of tendons. Usually a patient with a complete tear of the posterior tibial tendon has characteristic physical findings. In the patient presented, MRI demonstrated a complete disruption of the posterior tibial tendon, despite the absence of the commonly associated clinical findings. In view of the difficulties encountered with attempted tenography of the completely torn posterior tibial tendon, MRI provides a sensitive alternative diagnostic technique.

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High-Resolution Magnetic Resonance Imaging of the Human Median Nerve

Neurorehabilitation and Neural Repair ◽

10.1177/0888439004267074 ◽

2004 ◽

Vol 18 (2) ◽

pp. 80-87 ◽

Cited By ~ 11

Author(s):

Archie Heddings ◽

Mehmet Bilgen ◽

Randolph Nudo ◽

Bruce Toby ◽

Terence McIff ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

High Resolution ◽

Peripheral Nerve ◽

Median Nerve ◽

Ex Vivo ◽

Imaging Techniques ◽

Proton Density ◽

Resonance Imaging ◽

Imaging Protocols

Objectives. It is widely accepted that peripheral nerve repairs performed within 6 weeks of injury have much better outcomes than those performed at later dates. However, there is no diagnostic technique that can determine if a traumatic peripheral nerve injury requires surgical intervention in the early postinjury phase. The objective of this article was to determine whether novel, noninvasive magnetic resonance imaging techniques could demonstrate the microstructure of human peripheral nerves that is necessary for determining prognosis and determining if surgery is indicated following traumatic injury. Methods. Ex vivo magnetic resonance imaging protocols were developed on a 9.4-T research scanner using spin-echo proton density and gradient-echo imaging sequences and a specially designed, inductively coupled radio frequency coil. These imaging protocols were applied to in situ imaging of the human median nerve in 4 fresh-frozen cadaver arms. Results. Noninvasive high-resolution images of the human median nerve were obtained. Structures in the nerve that were observed included fascicles, interfascicular epineurium, perineurium, and intrafascicular septations. Conclusion. Application of these imaging techniques to clinical scanners could provide physicians with a tool that is capable of grading the severity of nerve injuries and providing indications for surgery in the early postinjury phase.

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