Declaración de conformidad DICOM
Última actualización: 9 de octubre de 2026.
1. Introducción
NUBIX es una plataforma RIS/PACS en la nube de Theia, S.A.P.I. de C.V. Los estudios llegan a la plataforma a través de un agente local, NUBIX OS, que se instala en la red del cliente: recibe los estudios que envían las modalidades, ofrece la lista de trabajo y transmite los estudios a la nube. Esta declaración describe las capacidades DICOM de las dos versiones vigentes del agente y del visor web de NUBIX:
- NUBIX OS 2: aplicación de escritorio para macOS, Windows y Linux, construida sobre DCMTK.
- NUBIX OS 1.5: equipo dedicado (Raspberry Pi) con recepción DICOM basada en dcm4che y lista de trabajo basada en DCMTK.
2. Servicios de red
| Servicio | UID | Rol |
|---|---|---|
| Verification (C-ECHO) | 1.2.840.10008.1.1 | SCP |
| Clases de almacenamiento (C-STORE) — sección 4 | — | SCP |
| Modality Worklist Information Model – FIND | 1.2.840.10008.5.1.4.31 | SCP |
NUBIX OS no actúa como SCU: no consulta ni recupera estudios de otros sistemas (Query/Retrieve) ni los reenvía a otros PACS. No implementa Storage Commitment ni Modality Performed Procedure Step (MPPS). NUBIX no ofrece servicios DICOMweb (WADO-RS, STOW-RS, QIDO-RS).
3. AE Titles y puertos
Los AE Titles, la dirección IP y los puertos de cada instalación se configuran al instalar NUBIX OS y se entregan directamente al cliente para dar de alta los destinos en sus modalidades.
4. Almacenamiento (Storage SCP)
NUBIX OS acepta todas las clases de almacenamiento estándar de DICOM; NUBIX OS 2 acepta además clases privadas o no estándar. Entre las más usadas:
| Clase de almacenamiento | UID |
|---|---|
| Computed Radiography Image Storage | 1.2.840.10008.5.1.4.1.1.1 |
| Digital X-Ray Image Storage – For Presentation | 1.2.840.10008.5.1.4.1.1.1.1 |
| Digital Mammography X-Ray Image Storage – For Presentation | 1.2.840.10008.5.1.4.1.1.1.2 |
| CT Image Storage | 1.2.840.10008.5.1.4.1.1.2 |
| Enhanced CT Image Storage | 1.2.840.10008.5.1.4.1.1.2.1 |
| Ultrasound Multi-frame Image Storage | 1.2.840.10008.5.1.4.1.1.3.1 |
| MR Image Storage | 1.2.840.10008.5.1.4.1.1.4 |
| Enhanced MR Image Storage | 1.2.840.10008.5.1.4.1.1.4.1 |
| Ultrasound Image Storage | 1.2.840.10008.5.1.4.1.1.6.1 |
| Secondary Capture Image Storage | 1.2.840.10008.5.1.4.1.1.7 |
| X-Ray Angiographic Image Storage | 1.2.840.10008.5.1.4.1.1.12.1 |
| X-Ray Radiofluoroscopic Image Storage | 1.2.840.10008.5.1.4.1.1.12.2 |
| Nuclear Medicine Image Storage | 1.2.840.10008.5.1.4.1.1.20 |
| Positron Emission Tomography Image Storage | 1.2.840.10008.5.1.4.1.1.128 |
| Encapsulated PDF Storage | 1.2.840.10008.5.1.4.1.1.104.1 |
| Basic Text SR Storage | 1.2.840.10008.5.1.4.1.1.88.11 |
| Enhanced SR Storage | 1.2.840.10008.5.1.4.1.1.88.22 |
| Comprehensive SR Storage | 1.2.840.10008.5.1.4.1.1.88.33 |
NUBIX OS 2 atiende cada asociación en un proceso independiente, por lo que acepta varias modalidades enviando al mismo tiempo.
5. Sintaxis de transferencia
En recepción, NUBIX OS acepta la sintaxis de transferencia que proponga la modalidad, comprimida o sin comprimir, entre ellas:
| Sintaxis de transferencia | UID |
|---|---|
| Implicit VR Little Endian | 1.2.840.10008.1.2 |
| Explicit VR Little Endian | 1.2.840.10008.1.2.1 |
| Deflated Explicit VR Little Endian | 1.2.840.10008.1.2.1.99 |
| JPEG Baseline (Process 1) | 1.2.840.10008.1.2.4.50 |
| JPEG Extended (Process 2 & 4) | 1.2.840.10008.1.2.4.51 |
| JPEG Lossless, Non-Hierarchical (Process 14) | 1.2.840.10008.1.2.4.57 |
| JPEG Lossless, Non-Hierarchical, First-Order Prediction (Process 14 [SV1]) | 1.2.840.10008.1.2.4.70 |
| JPEG-LS Lossless | 1.2.840.10008.1.2.4.80 |
| JPEG-LS Lossy (Near-Lossless) | 1.2.840.10008.1.2.4.81 |
| JPEG 2000 (Lossless Only) | 1.2.840.10008.1.2.4.90 |
| JPEG 2000 | 1.2.840.10008.1.2.4.91 |
| RLE Lossless | 1.2.840.10008.1.2.5 |
También acepta las sintaxis de video (MPEG-2, H.264 y HEVC) que soporte la versión de DCMTK o dcm4che instalada.
Compresión antes del envío (NUBIX OS 2). Para enviarlos a la nube, NUBIX OS 2 comprime sin pérdida (JPEG Lossless, 1.2.840.10008.1.2.4.70) los estudios que llegan sin comprimir, y convierte a esa misma sintaxis los que llegan en JPEG-LS, RLE o JPEG 2000. No modifica los que ya llegan en JPEG, el video ni los objetos sin imagen (SR, PDF). En Windows y Linux, los estudios en JPEG 2000 se envían tal como llegaron.
6. Lista de trabajo (Modality Worklist SCP)
NUBIX OS descarga periódicamente las citas agendadas en NUBIX y las publica como lista de trabajo. Las modalidades la consultan (C-FIND) para obtener los datos del paciente y del procedimiento sin capturarlos a mano. Las respuestas declaran el juego de caracteres ISO_IR 100 (Latin-1), de modo que acentos y eñes llegan correctamente a la modalidad. NUBIX OS 2 responde los registros que coinciden aun cuando la consulta incluya atributos que no reconoce, y admite hasta 50 consultas simultáneas.
7. Juegos de caracteres
En recepción, los estudios se almacenan con el juego de caracteres con el que los envía la modalidad, sin conversión. La lista de trabajo responde en ISO_IR 100.
8. Comportamiento de NUBIX OS 2
- NUBIX OS 2 no es un archivo ni un respaldo: una vez que un estudio se transmite a la plataforma, se borra del equipo local.
- Si un estudio no logra transmitirse, NUBIX OS 2 lo reintenta hasta 12 veces con esperas crecientes, durante aproximadamente seis horas; después, o de inmediato si la plataforma lo rechaza, lo pasa a una carpeta de cuarentena local para que se revise y se reenvíe.
- De manera opcional, NUBIX OS 2 puede indexar un respaldo DICOM existente (disco, NAS o archivo histórico de la clínica) para buscar estudios y enviarlos a la plataforma.
- NUBIX OS 2 se habilita con un archivo de activación cifrado y firmado, emitido para cada equipo.
9. Visor
NUBIX incluye un visor DICOM web, sin instalación, con: visualización 2D, ventana/nivel, zoom y desplazamiento, anotaciones, mediciones, comparación de series, reconstrucción multiplanar (MPR), series multiframe y consulta de los atributos DICOM de la imagen, como la posición y la orientación del paciente.
10. Seguridad
El intercambio DICOM entre las modalidades y NUBIX OS ocurre dentro de la red local del cliente y no usa TLS; cuando NUBIX OS 1.5 opera en un servidor en la nube, las modalidades se conectan a él por un canal seguro. De NUBIX OS a la plataforma, la información viaja cifrada por HTTPS, y en la nube se almacena cifrada. NUBIX no anonimiza estudios, pero puede recibir y almacenar estudios que ya vengan anonimizados. Para más información, consulte nuestras páginas de seguridad de la información de salud (HIPAA) y de privacidad.
DICOM Conformance Statement
Last updated: October 9, 2026.
1. Introduction
NUBIX is a cloud RIS/PACS platform by Theia, S.A.P.I. de C.V. Studies reach the platform through a local agent, NUBIX OS, installed in the customer’s network: it receives studies sent by modalities, provides the worklist and transmits studies to the cloud. This statement describes the DICOM capabilities of the two current agent versions and of the NUBIX web viewer:
- NUBIX OS 2: desktop application for macOS, Windows and Linux, built on DCMTK.
- NUBIX OS 1.5: dedicated device (Raspberry Pi) with dcm4che-based DICOM reception and DCMTK-based worklist.
2. Network services
| Service | UID | Role |
|---|---|---|
| Verification (C-ECHO) | 1.2.840.10008.1.1 | SCP |
| Storage SOP classes (C-STORE) — section 4 | — | SCP |
| Modality Worklist Information Model – FIND | 1.2.840.10008.5.1.4.31 | SCP |
NUBIX OS does not act as an SCU: it does not query or retrieve studies from other systems (Query/Retrieve) or forward them to other PACS. It does not implement Storage Commitment or Modality Performed Procedure Step (MPPS). NUBIX does not provide DICOMweb services (WADO-RS, STOW-RS, QIDO-RS).
3. AE Titles and ports
The AE Titles, IP address and ports of each installation are configured when NUBIX OS is installed and provided directly to the customer to set up the destinations on its modalities.
4. Storage (Storage SCP)
NUBIX OS accepts all standard DICOM storage SOP classes; NUBIX OS 2 also accepts private or non-standard classes. The most common include:
| Storage SOP Class | UID |
|---|---|
| Computed Radiography Image Storage | 1.2.840.10008.5.1.4.1.1.1 |
| Digital X-Ray Image Storage – For Presentation | 1.2.840.10008.5.1.4.1.1.1.1 |
| Digital Mammography X-Ray Image Storage – For Presentation | 1.2.840.10008.5.1.4.1.1.1.2 |
| CT Image Storage | 1.2.840.10008.5.1.4.1.1.2 |
| Enhanced CT Image Storage | 1.2.840.10008.5.1.4.1.1.2.1 |
| Ultrasound Multi-frame Image Storage | 1.2.840.10008.5.1.4.1.1.3.1 |
| MR Image Storage | 1.2.840.10008.5.1.4.1.1.4 |
| Enhanced MR Image Storage | 1.2.840.10008.5.1.4.1.1.4.1 |
| Ultrasound Image Storage | 1.2.840.10008.5.1.4.1.1.6.1 |
| Secondary Capture Image Storage | 1.2.840.10008.5.1.4.1.1.7 |
| X-Ray Angiographic Image Storage | 1.2.840.10008.5.1.4.1.1.12.1 |
| X-Ray Radiofluoroscopic Image Storage | 1.2.840.10008.5.1.4.1.1.12.2 |
| Nuclear Medicine Image Storage | 1.2.840.10008.5.1.4.1.1.20 |
| Positron Emission Tomography Image Storage | 1.2.840.10008.5.1.4.1.1.128 |
| Encapsulated PDF Storage | 1.2.840.10008.5.1.4.1.1.104.1 |
| Basic Text SR Storage | 1.2.840.10008.5.1.4.1.1.88.11 |
| Enhanced SR Storage | 1.2.840.10008.5.1.4.1.1.88.22 |
| Comprehensive SR Storage | 1.2.840.10008.5.1.4.1.1.88.33 |
NUBIX OS 2 handles each association in a separate process, so several modalities can send at the same time.
5. Transfer syntaxes
On reception, NUBIX OS accepts the transfer syntax proposed by the modality, compressed or uncompressed, including:
| Transfer syntax | UID |
|---|---|
| Implicit VR Little Endian | 1.2.840.10008.1.2 |
| Explicit VR Little Endian | 1.2.840.10008.1.2.1 |
| Deflated Explicit VR Little Endian | 1.2.840.10008.1.2.1.99 |
| JPEG Baseline (Process 1) | 1.2.840.10008.1.2.4.50 |
| JPEG Extended (Process 2 & 4) | 1.2.840.10008.1.2.4.51 |
| JPEG Lossless, Non-Hierarchical (Process 14) | 1.2.840.10008.1.2.4.57 |
| JPEG Lossless, Non-Hierarchical, First-Order Prediction (Process 14 [SV1]) | 1.2.840.10008.1.2.4.70 |
| JPEG-LS Lossless | 1.2.840.10008.1.2.4.80 |
| JPEG-LS Lossy (Near-Lossless) | 1.2.840.10008.1.2.4.81 |
| JPEG 2000 (Lossless Only) | 1.2.840.10008.1.2.4.90 |
| JPEG 2000 | 1.2.840.10008.1.2.4.91 |
| RLE Lossless | 1.2.840.10008.1.2.5 |
It also accepts the video syntaxes (MPEG-2, H.264 and HEVC) supported by the installed DCMTK or dcm4che version.
Compression before upload (NUBIX OS 2). To send studies to the cloud, NUBIX OS 2 losslessly compresses (JPEG Lossless, 1.2.840.10008.1.2.4.70) studies received uncompressed, and converts studies received as JPEG-LS, RLE or JPEG 2000 to that same syntax. It does not modify studies already in JPEG, video or non-image objects (SR, PDF). On Windows and Linux, JPEG 2000 studies are sent as received.
6. Worklist (Modality Worklist SCP)
NUBIX OS periodically downloads the appointments scheduled in NUBIX and publishes them as a worklist. Modalities query it (C-FIND) to obtain patient and procedure data without typing it. Responses declare the ISO_IR 100 (Latin-1) character set, so accented characters reach the modality correctly. NUBIX OS 2 returns matching records even when the query includes attributes it does not recognize, and supports up to 50 simultaneous queries.
7. Character sets
On reception, studies are stored with the character set sent by the modality, without conversion. The worklist responds in ISO_IR 100.
8. NUBIX OS 2 behavior
- NUBIX OS 2 is not an archive or a backup: once a study is transmitted to the platform, it is deleted from the local computer.
- If a study cannot be transmitted, NUBIX OS 2 retries up to 12 times with increasing waits, for about six hours; after that, or immediately if the platform rejects it, it moves the study to a local quarantine folder for review and resending.
- Optionally, NUBIX OS 2 can index an existing DICOM backup (disk, NAS or the clinic’s historical archive) to search for studies and send them to the platform.
- NUBIX OS 2 is enabled with an encrypted, signed activation file issued for each computer.
9. Viewer
NUBIX includes a zero-install web DICOM viewer with: 2D display, window/level, zoom and pan, annotations, measurements, series comparison, multiplanar reconstruction (MPR), multi-frame series and display of DICOM image attributes such as patient position and orientation.
10. Security
DICOM exchange between modalities and NUBIX OS takes place within the customer’s local network and does not use TLS; when NUBIX OS 1.5 runs on a cloud server, modalities connect to it over a secure channel. From NUBIX OS to the platform, data travels encrypted over HTTPS, and it is stored encrypted in the cloud. NUBIX does not de-identify studies, but it can receive and store studies that are already de-identified. For more information, see our health information security (HIPAA) and privacy pages.