Abstract The Late Triassic Dockum Group in northwestern Texas preserves a rich diversity of pseudosuchian taxa, particularly aetosaurs. In this contribution, we present Garzapelta muelleri gen. et sp. nov., new aetosaur from the middle Cooper Canyon Formation (latest Adamanian–earliest Revueltian teilzones) Garza County, Texas, based on an associated specimen that significant portion its dorsal carapace. carapace G . exhibits striking degree similarity between paratypothoracin...

Introduction We report our initial series of patients treated with radiosurgery to the Centromedian (CM) and Parafascicular (Pfc) Complex (CM-Pf) contralateral thalamus mainly for trigeminal neuralgia that had failed most known forms conventional treatments. The coordinates were co-registered a three-dimensional atlas in order have better comprehension isodose curves distribution. Methods A fully automated rotating gamma ray unit was used deliver high dose radiation (140 Gy) using 4-mm...

Abstract Calyptosuchus wellesi is an aetosaur known from the upper Blue Mesa Member and lowermost Sonsela of Chinle Formation in Arizona, Tecovas Dockum Group Texas. The taxon considered biostratigraphically informative aids correlating Upper Triassic strata across southwestern United States. Our anatomical understanding was primarily based on holotype specimen Texas referred specimens, including several disarticulated elements Placerias Quarry northern Arizona. We provide a...

Patients with trigeminal neuralgia (TN) experience concomitant continuous pain (CCP) that can be difficult to treat. A dual-target approach delivering a high dose of radiation the nerve and contralateral thalamus develop fast radiomodulation effect on lowering pain. We sought determine if this was dependent.

Introduction Surgery is considered the treatment of choice for patients with large, symptomatic brain metastases. This report describes a series treated upfront two-session radiosurgery rather than surgery large metastases from breast and lung histology. Methods From October 2016 to January 2019, 10 consecutive neurologic symptoms producing mass effects underwent two sessions radiosurgical treatments 30 days apart. The response was assessed by imaging clinical evaluations. Results Ten had...

Our understanding of Typothorax coccinarum is primarily based on postcranial material, along with a few isolated cranial elements. Here we describe the first complete articulated skull from Owl Rock Member Late Triassic Chinle Formation in Petrified Forest National Park. We assessed relationships and defining synapomorphies for some major clades within Aetosauria by using combination morphological characters cranium coccinarum. Based descriptions skulls variety aetosaur species including...

Abstract Maximum individual body size in pseudosuchian archosaurs is not well constrained the fossil record, but it may be influenced by a variety of factors including basal metabolic rate, evolutionary relationships, and environmental conditions. Body varies among Aetosauria which estimated total length ranges between 1 m (e.g., Coahomasuchus kahleorum ) 5 Desmatosuchus spurensis ). A new, very large specimen aetosaurian Typothorax coccinarum from Petrified Forest National Park northeastern...

Introduction We report our initial series of terminally ill cancer patients treated with radiosurgery to the pituitary gland alleviate pain. Methods A fully automated rotating gamma ray unit was used deliver a high dose radiation (150Gy) using an 8 mm collimator neurohypophysis in 11 suffering from opioid-refractory pain deriving cancer. Results From November 2016 2018, were treated, and 10 eligible for follow-up evaluation. Pain bone metastases present 70%; others suffered neuropathic...

Abstract A newly referred specimen of Coahomasuchus kahleorum (TMM 31100‐437) from the lower part Upper Triassic Dockum Group Texas preserves much skeleton including majority skull. Introduced in literature 1980s as “carnivorous aetosaur”, TMM 31100‐437 bears recurved teeth that previously were considered unique among aetosaurs. The small size individual led to speculation it represents a skeletally immature retains plesiomorphic dentition for Archosauromorpha. We provide detailed evaluation...

Introduction Surgery is an option for patients with large, symptomatic primary tumors affecting the brain. However, surgery might not be suitable all tumors, especially those located in sensitive areas such as pineal region and hypothalamus. Single-session stereotactic radiosurgery (SRS) provide adequate dose long-term local control due to initial tumor volume involvement of radiation organs at risk (OARs). Two-session has been described a feasible strategy escalation large secondary brain...

Introduction The objective is to report the dosimetry and safety profiles of first fully automatized rotating gamma ray unit for intracranial radiosurgery in America. Methods Dosimetry tests were conducted by our institution using standard examination calibration Intelligent γ Radiometer China Research Institute Measurement. phantom performed Outreach Physics Section MD Anderson Cancer Center Anchorage Radiation Therapy Oncology Group (RTOG) quality assurance guidelines. Clinically, 233...

The Late Triassic archosauromorph Trilophosaurus buettneri is known from many sites in the Dockum Group and Chinle Formation of Texas Arizona, spanning nearly 10 Ma Otischalkian to Adamanian estimated holochrons. holotype specimen, UMMP 2338, was described as a small fragment lower jaw 1928 by E.C. Case. However, at time no other specimens taxon were known. present availability several complete skulls, mandibles, postcranial skeletons referred T. allows for reexamination anatomical context...

Introducción: Las recomendaciones en el manejo de metástasis superiores a 2 cm especialmente las sintomáticas sugieren cirugía como primera opción. En presente artículo se discute papel radiocirugía primer estos pacientes.Material y método: Se evaluaron 37 pacientes sintomáticos con lesiones metastásicas 8.5 cc tratados entre 2011 2018.Resultados: La media volumen fue 12.5 (8.5-78.4), 9 (24%) fueron utilizando LINAC, medio 20 (9.2-70 cc). Los tratamientos Gamma-Ray administrados 28 (76%)...

Introducción: La dupla Cyberknife y bisturí de rayos gamma (Infini) que se describe es la primera en Latinoamérica. Ambas máquinas han mostrado ser los mejores equipos para radiocirugía intracraneal. Se experiencia inicial Centroamérica su incorporación a un programa existente por vía análisis comparativos dosimétricos.Material método: En el año 2019 realizaron planes trataron 180 pacientes con intracraneal ambos sistemas tanto patología tumoral, como vascular funcional.Resultados:...