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Search Results: 1 - 10 of 1177 matches for " Naveen; Shetty "
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Looped External Iliac Artery: a Case Report
Nayak B,Satheesha; Kumar,Naveen; Shetty,Surekha D; Guru,Anitha;
International Journal of Morphology , 2012, DOI: 10.4067/S0717-95022012000300017
Abstract: variations of the external iliac artery are very rare. we found a rare variation in the left external iliac artery. the artery was long and formed a characteristic loop. the loop was found in the lesser pelvis in close relation to the obturator nerve. this loop may compress obturator nerve and vessels. the knowledge of this loop might be important for gynaecologists, orthopaedic surgeons and urologists since it may be involved in surgeries of hip, ovary and prostate.
Looped External Iliac Artery: a Case Report Arteria Ilíaca Externa en Bucle: Reporte de Caso
Satheesha Nayak B,Naveen Kumar,Surekha D Shetty,Anitha Guru
International Journal of Morphology , 2012,
Abstract: Variations of the external iliac artery are very rare. We found a rare variation in the left external iliac artery. The artery was long and formed a characteristic loop. The loop was found in the lesser pelvis in close relation to the obturator nerve. This loop may compress obturator nerve and vessels. The knowledge of this loop might be important for gynaecologists, orthopaedic surgeons and urologists since it may be involved in surgeries of hip, ovary and prostate. Las variaciones de la arteria ilíaca externa son raras. Se encontró una variación poco frecuente en la arteria ilíaca externa izquierda. La arteria era larga y formaba un bucle característico. El bucle se encontró en la pelvis menor en estrecha relación con el nervio obturador. Este circuito puede comprimir el nervio obturador y los vasos circundantes. El conocimiento de este circuito podría ser importante para los ginecólogos, cirujanos ortopédicos y urólogos, ya que pueden estar involucrados en las cirugías de cadera, ovario y próstata.
Hypoplastic Anterior Tibial Artery Associated with Continuation of Fibular (Peroneal) Artery as Dorsalis Pedis Artery: A Case Report Arteria Tibial Anterior Hipoplásica Asociada con la Continuación de la Arteria Fibular como Arteria Dorsal del Pié: Un Reporte de Caso
Surekha D Shetty,Satheesha Nayak,Naveen Kumar,P Abhinitha
International Journal of Morphology , 2013,
Abstract: Arterial variations of distal parts of lower limb are well documented. However, continuation of fibular artery as dorsalis pedis artery is a rare finding. Unusual course and distribution of the anterior tibial artery and fibular artery were observed during routine anatomical dissection of the right lower limb of an approximately 40-year-old male cadaver. The arteries of the crural region arose from the popliteal artery, as usual. However the anterior tibial artery was hypoplastic. The fibular artery was larger than usual and crossed the lowest portion of the interosseous membrane and continued as dorsalis pedis artery. Posterior tibial artery had a normal course and distally divided into medial and lateral plantar arteries. The awareness of these variations is important to vascular surgeons while performing arterial reconstructions in femorodistal bypass graft procedures, and also to orthopaedic surgeons during surgical clubfoot release. Las variaciones arteriales de las partes distales de los miembros inferiores están bien documentados. Sin embargo, la continuación de la arteria fibular como arteria dorsal del pie es un hallazgo raro. El curso y distribución inusual de la arteria tibial anterior y la arteria fibular se observaron durante la disección anatómica de rutina en el miembro inferior derecho del cadáver de un hombre de aproximadamente 40 a os de edad. Las arterias de la región crural se originaron desde la arteria poplítea como es usual. Sin embargo, la arteria tibial anterior era hipoplásica. La arteria fibular era más grande de lo habitual, cruzó la porción más baja de la membrana interósea y se mantuvo como la arteria dorsal del pie. La arteria tibial posterior tuvo un curso normal; distalmente se dividió en las arterias plantares medial y lateral. El conocimiento de estas variaciones es importante para los cirujanos vasculares al realizar reconstrucciones arteriales en procedimientos de injerto de bypass femorodistal, y también para los cirujanos ortopédicos durante la liberación quirúrgica del pie zambo.
Costodorsalis - an Additional Slip of Pectoralis Major Muscle: a Case Report
Shetty,Surekha D; Nayak,Satheesha B; Kumar,Naveen; Somayaji,S. N; Rao,Mohandas K. G;
International Journal of Morphology , 2011, DOI: 10.4067/S0717-95022011000200017
Abstract: occurrence of variant muscular slips from pectoralis major muscle is rare. in this report, we present a rare case of aberrant muscular slip associated with the pectoralis major muscle which we call costodorsalis. this muscular slip originated from the 6th rib near the costochondral junction and ran along the lower border of pectoralis major muscle. it crossed the axilla from medial to lateral side and merged with the latissimus dorsi muscle. this type of origin and insertion is unique and has not been reported earlier. the knowledge of this muscle variation may be of special importance to the anesthesiologists, physiotherapists and plastic surgeons.
Presence of Arteriovenous Communication between Left Testicular Vessels and Its Clinical Significance
Naveen Kumar,Ravindra Swamy,Jyothsna Patil,Anitha Guru,Ashwini Aithal,Prakashchandra Shetty
Case Reports in Vascular Medicine , 2014, DOI: 10.1155/2014/160824
Abstract: Maintenance of testicular temperature below body temperature is essential for the process of spermatogenesis. This process of thermoregulation is mainly achieved by testicular veins through pampiniform venous plexus of the testis by absorbing the heat conveyed by the testicular arteries. However, this mechanism of thermoregulation may be hampered if an abnormal communication exists between the testicular vessels. We report herewith a rare case of arteriovenous communication between testicular artery and testicular vein on left side. The calibre of the communicating vessel was almost similar to left testicular artery. Such abnormal communication may obstruct the flow of blood in the vein by causing impairment in the perfusion pressure with the eventual high risk of varicocele. 1. Introduction Testicular arteries are long, slender vessels originating from abdominal aorta slightly below the origin of renal arteries. Testicular arteries reach the deep inguinal ring and pass through spermatic cord in the inguinal canal and finally enter the scrotum to supply testis [1]. Venules draining the testes join in the mediastinum testes to form several veins. In the spermatic cord these veins form the pampiniform plexus—an intercommunicating venous network that surrounds the testicular artery and cools arterial blood before it reaches the testes. The right testicular vein drains into the inferior vena cava and the left testicular vein drains into the left renal vein. Maintaining the suitable temperature for the crucial stages of spermatogenesis is priority of the body. The specialised venous network in the form of pampiniform plexus of the testicular veins allows countercurrent heat exchange with the testicular artery and maintains the thermoregulation. Occasionally there may be parallel collaterals to the gonadal veins at different locations of its extent [2]. Very rarely additional collateral supply can occur from retroperitoneal branches which in turn communicate with contralateral gonadal vein or renal veins [3]. But, the arteriovenous communication between the testicular artery and vein is the rarest of all variations pertaining to the vascular anomalies affecting the gonadal vasculature. We report herewith one such exceptional case with the discussion of possible complications having arteriovenous communication between left testicular vessels. 2. Case Report During routine cadaveric dissection for the undergraduate medical students, we observed a prominent communicating vascular channel between testicular artery and testicular vein on the left side of the male
A Rare Variation in the Origin and Course of the Artery of Penis
Satheesha B. Nayak,Naveen Kumar,Jyothsna Patil,Surekha D. Shetty,Srinivasa Rao Sirasanagandla,Swamy Ravindra
Case Reports in Vascular Medicine , 2014, DOI: 10.1155/2014/193194
Abstract: Vascular variations of the penis are very rare. Awareness of its variations is of utmost importance to the urologists and radiologist dealing with the reconstruction or transplants of penis, erectile dysfunctions, and priapism. We report an extremely rare variation of the artery of the penis and discuss its clinical importance. The artery of the penis arose from a common arterial trunk from the left internal iliac artery. The common trunk also gave origin to the obturator and inferior vesical arteries. The artery of the penis coursed forward in the pelvis above the pelvic diaphragm and divided into deep and dorsal arteries of the penis just below the pubic symphysis. The internal pudendal artery was small and supplied the anal canal and musculature of the perineum. It also gave an artery to the bulb of the penis. 1. Introduction The artery of the penis is the distal continuation of the internal pudendal artery after the origin of its perineal branch. It runs anteriorly below or above the inferior fascia of urogenital diaphragm to reach the area just below the inferior pubic ligament, where it terminates by dividing into deep and dorsal arteries of the penis [1]. Artery of the penis may rarely arise directly from the internal iliac artery and continue as the deep artery of the penis when the dorsal artery of the penis is a branch of internal iliac artery or the inferior epigastric artery [2]. Knowledge of variations in the origin and course of the artery of the penis is important to radiologists, surgeons, and urologists. We report an extremely rare variation of the artery of the penis and to the best of our knowledge this is the first report on such a variation. The clinical and surgical implication of the variation is discussed. 2. Case Report During dissection classes for undergraduate medical students, a rare variation in the origin and course of the artery of the penis was noted. The variation was found in an adult male cadaver aged approximately 70 years. The left internal iliac artery did not divide into anterior and posterior divisions. The main trunk of the internal iliac artery gave iliolumbar, lateral sacral, superior gluteal, middle rectal, and superior vesical arteries. In addition to these arteries two common trunks arose from it. The first common trunk bifurcated into inferior gluteal and internal pudendal arteries, whereas the second common trunk gave two inferior vesical arteries, obturator artery, and the artery of penis (Figure 1). The artery of the penis coursed forwards between the bladder and lateral pelvic wall until the pubis.
Microscopic Observation of Nuclear Track Pores in Polymeric Membranes  [PDF]
Naveen K. Acharya
Engineering (ENG) , 2011, DOI: 10.4236/eng.2011.36076
Abstract: Nuclear track pores were develop and observed in polycarbonate and LR-115 membranes. The polymer membranes were irradiated by swift heavy ions (SHI) and etched chemically. The stopping range of heavy ion is larger than the thickness of the membrane. The fluence of ions was changes from 103 to 107 ions-cm-2. The etching time was increased till pore size reaches up to micron range. The etching conditions were set to develop the porous tracks. The tracks are revealed under optical microscope as the size reaches up to micron or sub-micron size. The size was measured using standard electron diffraction grid. Results show that the porous tracks having average size of 2.4 micron can be developed in polycarbonate, while 5 - 10 micron porous tracks can be developed in LR-115.
Video Based Vehicle Detection and its Application in Intelligent Transportation Systems  [PDF]
Naveen Chintalacheruvu, Venkatesan Muthukumar
Journal of Transportation Technologies (JTTs) , 2012, DOI: 10.4236/jtts.2012.24033
Abstract: Video based vehicle detection technology is an integral part of Intelligent Transportation System (ITS), due to its non-intrusiveness and comprehensive vehicle behavior data collection capabilities. This paper proposes an efficient video based vehicle detection system based on Harris-Stephen corner detector algorithm. The algorithm was used to develop a stand alone vehicle detection and tracking system that determines vehicle counts and speeds at arterial roadways and freeways. The proposed video based vehicle detection system was developed to eliminate the need of complex calibration, robustness to contrasts variations, and better performance with low resolutions videos. The algorithm performance for accuracy in vehicle counts and speed was evaluated. The performance of the proposed system is equivalent or better compared to a commercial vehicle detection system. Using the developed vehicle detection and tracking system an advance warning intelligent transportation system was designed and implemented to alert commuters in advance of speed reductions and congestions at work zones and special events. The effectiveness of the advance warning system was evaluated and the impact discussed.
The lateral neck radiograph for an impacted fish bone in the aero-digestive tract: Going back to basics  [PDF]
Dushyant Shetty, David AT Gay
Journal of Biomedical Science and Engineering (JBiSE) , 2012, DOI: 10.4236/jbise.2012.512A104
Abstract:

Aim: To evaluate the radioopacity of fish bones from a number of species using digital radiography in order to establish whether advances in acquisition and interpretative techniques have affected the radiologist’s ability to detect impacted fish bones. Methods: The bones from six species of fish commonly consumed in the United Kingdom were radiographed using a soft tissue neck phantom by means of a digital radiographic X-ray tube. The images were looked at by 15 radiology consultants and registrars who determined whether the bones were visible or not using General Electric (GE) PACS workstations. Results: The radio-graphed bones from all six species of fish were visible by all 15 (100%) radiology registrars and consultants. Conclusion: Digital radiogramphy and modern PACS workstations have meant that fish bones can be visualized irrespective of species. The lateral neck radiograph therefore may still have an important role in the investigation of impacted fish bones in the aerodigestive tract.

Sodium dithionite as a selective demasking agent for the complexometric determination of thallium
PRAKASH SHETTY,NITYANANDA SHETTY
Journal of the Serbian Chemical Society , 2005,
Abstract: Sodium dithionite is proposed as a new demasking agent for the rapid and selective complexometric determination of thallium(III). In the presence of diverse metal ions, thallium (III) was first complexed with excess EDTA and the surplus EDTAwas then titrated with a standard zinc sulphate solution at pH 5–6 (hexamine buffer) using Xylenol Orange as the indicator. The EDTAequivalent to thallium was then released selectively with sodium dithionite and back titrated with a standard zinc sulphate solution as before. Reproducible and accurate results were obtained in the range 4–100 mg of thallium with a relative error of ±27 % and a coefficient of variation (n = 6) of not more than 0.30 %. The effects of various diverse ions were studied. The method was applied to the determination of thallium in its complexes and in alloys.
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