Classify first. Analyze second.
Radiographic datasets are not all alike. RheumaView™ formally classifies every imaging dataset before analysis begins — across temporal structure, anatomy, laterality, modality, and coverage.
The dataset is read before the image is.
Every dataset entering RheumaView™ is described along eight orthogonal axes. These determine which comparisons are valid, which deltas can be computed, and which extractions are trial-compatible.
Eight orthogonal dimensions resolved before any structural reading begins.
ii.Case Library index notationRV-### · code
Each case in the RheumaView™ Case Library is labeled using a compact index for quick identification. This notation is used throughout the Case Library as a navigation marker. Full dataset classification is defined separately in the broader RheumaView™ classification framework.
RV-[ordinal] — sequential case number
SP / LM / LX — temporal pattern
PER / AX / MIX — main case class
Coverage — abbreviated anatomical regions
Common abbreviations:
SP single time point · LM limited longitudinal · LX extended longitudinal
PER peripheral · AX axial · MIX mixed axial/peripheral
CS cervical · TS thoracic · LS lumbar · SI sacroiliac · PEL pelvis/hips · HW hands/wrists · FA feet/ankles
01Temporal StructureSingle · Near · Longitudinal
RheumaView™ recognizes three fundamental temporal types. Misclassification at this layer produces invalid longitudinal comparisons downstream.
Three temporal types — distinguishing baseline composites from genuine longitudinal series.
All images are acquired on the same examination date. The dataset represents one structural time point, and no internal temporal comparison is possible.
Images are acquired on different dates within a short diagnostic interval — days to several weeks — yet together represent the same structural baseline. RheumaView™ treats such studies as a unified structural baseline rather than as separate longitudinal time points, provided that no clinically meaningful structural change is expected within the interval.
Two or more examinations of the same anatomical region obtained at different time points to assess progression, regression, or stability. Regions must match across time points. Quantitative deltas — measured structural differences between matched time points — are computed for each aligned region.
02Anatomical DomainSpine · Pelvic-SI · Limbs
Regions that are often informally grouped together are treated as distinct analytical units. A cervical vertebra and a sacroiliac joint are not interchangeable data points, even when they appear in the same report.
Cervical, thoracic, and lumbar spine. Does not include sacroiliac joints, pelvis, or hips.
Sacroiliac joints and pelvic bones (ilium, ischium, pubis). Treated as a separate anatomical unit from both the spine and the hips.
Right and left hip joints, evaluated independently from pelvic or spinal datasets.
Spine and pelvic–sacroiliac components analyzed within the same study while preserving their identities as separate anatomical units.
Shoulders, elbows, wrists, and hands.
Hips, knees, ankles, and feet.
03Regional SetsHand-Wrist · Foot-Ankle · Knee
Regional sets represent groups of joints analyzed as a single structural unit, reflecting classical clinical assessment patterns.
Wrist joints together with metacarpophalangeal and interphalangeal joints. A classical unit of assessment in inflammatory arthritis.
Ankle joints together with metatarsophalangeal and interphalangeal joints.
Tibiofemoral and patellofemoral compartments.
Glenohumeral joint and acromioclavicular joint when visible.
04Coverage PatternSingle · Multi · System
Coverage describes the breadth of anatomical sampling — a property that constrains which inferences about systemic distribution are valid.
Coverage scales from focal sampling to full anatomical-system representation.
One anatomical region only. Example: bilateral knees.
Two or more distinct anatomical regions within the same report. Example: hands and feet.
A full anatomical system, typically an entire limb group. Example: all lower-extremity joints.
05Symmetry & LateralitySymmetric · Unilateral · Asymmetric
RheumaView™ classifies datasets not only by region, but also by side distribution. Laterality is not a minor labeling detail; it is a structural property of the dataset and a clinically meaningful analytic variable.
Bilateral anatomical structures are included. Examples: both hands, both knees, both hips.
Only one side of a bilateral structure is imaged. Examples: right knee only, left wrist only.
Bilateral anatomy is included incompletely or unevenly — one side missing, underrepresented, or not directly comparable to the other.
Many musculoskeletal and rheumatologic disorders carry characteristic side-distribution patterns. A dataset that is unilateral or asymmetric must be classified accordingly before pattern inference begins.
06Modality StructureSingle · Multi-modality
One imaging modality only: X-ray, MRI, ultrasound, or CT.
Two or more imaging modalities for the same or related regions. Examples: X-ray plus MRI, MRI plus CT, X-ray plus DEXA.
Cross-modality concordance — the degree to which findings from different modalities agree or diverge — is a distinct analytical dimension within RheumaView™. The platform architecture is also designed to support integration with additional diagnostic data streams, including modalities such as EMG/NCS, ultrasound, nuclear imaging, and other structured inputs where relevant. Not all integration pathways are publicly disclosed.
07Dataset Integration TypePure · Composite · Mixed
A single temporal, anatomical, and modality structure with no composite integration. Example: single-date wrist X-ray.
Multiple anatomical regions combined within the same time point. Example: hands plus feet X-ray study.
Different temporal or structural types combined within the same analytical session. Example: hand X-ray from one year and sacroiliac MRI from another. Mixed datasets require explicit handling to avoid false longitudinal comparison across incompatible time points or anatomical scopes.
08Standardized Description FormatUnified four-part format
Every dataset in the RheumaView™ Case Library is described using a consistent four-part structure. This standardized description ensures that every case illustration is unambiguously classified and that comparisons across cases remain meaningful.
- Single-date peripheral multi-region X-ray dataset
- Near-temporal composite axial radiographic dataset
- Longitudinal spinal MRI dataset
- Composite peripheral X-ray dataset
09Output formatsGold · Standard · Concise · Research
Once a dataset has been classified, the same governed pathway can render its findings in four distinct output formats. Each format addresses a different reader and decision context — from regulatory reference to operational triage to research extraction — without re-deriving the underlying structural reading.
Gold Standard
The most exhaustive structured rendering. Designed for regulatory review, expert reference, and trial-grade documentation where complete descriptor lineage is required.
View modes → Clinical depthStandard
The default clinician-facing report. Structured, audit-ready, and aligned with routine reading workflows — the working layer of the validator-governed pathway.
View modes → Operational depthConcise
A compressed, high-signal summary for triage, multidisciplinary handoff, and time-constrained reading. Preserves the deterministic structure of the source.
View modes → Research depthResearch Analytic Addendum
A separate analytic layer for trial-compatible extraction and research workflows — protected from the clinical report by design and intended for qualified research environments.
View modes →One reading. Four renderings. The clinical report and the research addendum are produced from the same governed source — but never collapsed into one another.
This is the condensed framework. The full guide expands every dimension with examples, diagrams, and multilingual versions.
Open the full classification guide →
One of the simplest cases — a good place to start.
A particularly instructive case — worth a close read.
A particularly instructive case — worth a close read.
Clinical + analytical reports Multilingual report availability
- Combined clinical and analytical reports are available in English, Russian, Spanish, Chinese, Portuguese, German, French, and Italian.
- Объединенные клинические и аналитические отчеты доступны на английском, русском, испанском, китайском, португальском, немецком, французском и итальянском языках.
- Los informes clínicos y analíticos combinados están disponibles en inglés, ruso, español, chino, portugués, alemán, francés e italiano.
- 临床与分析合并报告提供英文、俄文、西班牙文、中文、葡萄牙文、德文、法文和意大利文版本。
- Os relatórios clínicos e analíticos combinados estão disponíveis em inglês, russo, espanhol, chinês, português, alemão, francês e italiano.
- Kombinierte klinische und analytische Berichte sind in Englisch, Russisch, Spanisch, Chinesisch, Portugiesisch, Deutsch, Französisch und Italienisch verfügbar.
- Des rapports cliniques et analytiques combinés sont disponibles en anglais, russe, espagnol, chinois, portugais, allemand, français et italien.
- I report clinici e analitici combinati sono disponibili in inglese, russo, spagnolo, cinese, portoghese, tedesco, francese e italiano.
For translation requests, please contact us — contact_us@rheumaview.com
Most of the case library is available by request only, for professional use. Learn more about accessing the full RheumaView library.
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